Cool Math
http://www.coolmath.com/
Exciting math games, puzzles and activities for students. Tips, resources and ideas for teachers and parents.
Education Place (Houghton Mifflin)
http://www.eduplace.com/
Resources for elementary-school teachers, students, and parents. Includes Reading/Language Arts, Math, Science, and Social Studies Centers, Intervention, Professional Development, searchable activity database, educational games for kids, and textbook support.
Geometry On-Line
http://math.rice.edu/~lanius/Geom/
Geometry activities and information for middle school and high school students.
GirlTECH Lessons On-Line
http://teachertech.rice.edu/Lessons/
Lesson plans designed to take full advantage of Internet resources and to teach mathematics and science concepts in new and exciting ways
Interactive Mathematics Miscellany and Puzzles
http://www.cut-the-knot.com/content.shtml
Students and teachers can explore a variety of math concepts through puzzles and articles.
Math Forum Teacher's Place
http://mathforum.org/teachers/
Math links by grade level
National Council of Teachers of Mathematics
http://www.nctm.org/
NCTM's mission is to provide the vision and leadership necessary to ensure a mathematics education of the highest quality for all students.
Word Problems for Kids
http://www.stfx.ca/special/mathproblems/welcome.html
Word problems for grades 5-12, including hints for help in finding solutions. Answers can be obtained by email.
Student Mathematics Activity Resource Tools
http://www.howard.k12.md.us/math/elem.math/smart/kindergarten/
This site has numerous math activities that relate to problem solving, algebra, patterns, functions, computation, and number relationships.
Time for Time for Students and Teachers
http://www.time-for-time.com/
This page includes many options for teaching students to tell time. Click on "Time-to-Learn" and "Time-for-Teachers" for lessons, worksheets, games, and quizzes.
Homeschool Math.Net - Counting
http://www.homeschoolmath.net/worksheets/number-charts.php
This site allows teachers to design counting worksheets by scrolling down the page and using the "Create Number Charts and Lists" function at the bottom of the page. Worksheets with some of the numbers filled in would not be considered an independent level of support on the AAA. To develop independent worksheets, be sure to fill in "100%" when asked what percent to leave empty.
It is Time
http://www.abcteach.com/free/t/time.pdf
These pdf pages as be used as a guide for making a schedule for students to follow during the school day.
Stop the Clock
http://www.teachingtime.co.uk/draggames/sthec1.html
This page provides a game for students to match hour and half hour digital clocks to matching analog clocks.
What Time is It?
http://www.primarygames.com/time/start.htm
This page provides interactive use of digital and analog clock to the hour and half hour.
Circle Grapher
http://illuminations.nctm.org/ActivityDetail.aspx?ID=204
This Illuminations page allows students to create graphs with multiple variables. You can alter the pre‑made data set and input your own data.
Printable Telling Time Worksheets
http://www.theteacherscorner.net/printable-worksheets/make-your-own/telling-time/
This website allows teachers to create worksheets to help children tell time.
Money Worksheets
http://worksheets.theteacherscorner.net/make-your-own/money-worksheets/
The Web site allows teachers to make money worksheets. The teacher selects which coins and/or bills to include on each worksheet.
Do2Learn: Shapes
http://www.do2learn.com/activities/learn/shapeoverview.htm
This site provides multiple ideas with printable activities to teach basic shapes.
ABC Teach: Subtraction
http://www.abcteach.com/directory/basics/math/subtraction/
This website has adaptable subtraction worksheets.
Rotational Symmetry
http://mathforum.org/varnelle/kgeo4.html
Students demonstrate rotational symmetry using pattern blocks.
M&M Graphing Lesson Plan
http://teachers.net/lessons/posts/4072.html
The purpose of this lesson plan is to provide students with a hands-on and cooperative learning experience in the process of collecting, analyzing, and interpreting data, and to improve decision making skills through the use of probability.
Understanding Fractions
http://www.mathmammoth.com/preview/Fractions_Understanding.pdf
This is a two page pdf for explaining and practicing fractions.
Base Ten
http://www.learningbox.com/Base10/BaseTen.html
Students can complete interactive base 10 problems for hundreds, tens and ones. You have to click on 1, 10, and 100 on the left side to identify which place values will be included in the problems.
Shapes
http://www.hubbardscupboard.org/shapes.html
This page has several ideas for teaching shapes.
Counting Money
http://www.hbschool.com/activity/counting_money/
This page asks students to count a variety of coins.
AAA Math - Counting
http://www.aaastudy.com/cnt.htm
This page includes numerous counting topics, including counting by ones, fives and tens.
Math Slice: Tell Time
http://www.mathslice.com/actionctl.php?actionid=510
Teachers can create worksheets on telling time using analog clocks to the hour and half hour.
Count Money
http://www.mathslice.com/actionctl.php?actionid=521
Students will be able to practice determining the value of coins. The teacher or student selects which coins to include on the practice page.
IXL - Names and Values of Coins
http://www.ixl.com/math/practice/grade-2-identify-names-and-values-of-common-coins-bills
This is a site for students to identify names and values of common coins up to $1.
Memberships are available for a monthly or yearly charge, but the site can also be used as a guest for free. Click on "continue as a guest" for this option.
Reading Bar Graphs
http://www.studyzone.org/testprep/math4/e/readinggraphs3p.cfm
Students read the graph and answer the questions. Very good practice for R.ES 7.3
TV411 Reading Charts and Graphs
http://www.tv411.org/lessons/cfm/reading.cfm?num=10&act=2&que=1
Automated graphs for student to read and answer the questions associated with it.
Printable Time Worksheets
http://www.softschools.com/time/printable_time_worksheets_in_pdf/
This website offers worksheets dealing with telling time.
Graph Groups
http://abcteach.com/samples/math_worksheets/graph_groups_worksheet.pdf
Students are asked to count each shape, fill the graph for each shape according to how many, and circle the shape that appears most often.
Subtraction: 2 Digit with Regrouping
http://www.abcteach.com/free/s/sub_2digit_regroup.pdf
This is a pdf with four pages of subtraction with regrouping.
Dositey.com Tens and Ones
http://www.dositey.com/2008/addsub/tenoneex.htm
This interactive Web site provides practice problems for place value, tens and ones.
Sensational Subtraction Centers
http://www.uen.org/Lessonplan/preview.cgi?LPid=16222
This is a resource list for manipulative based centers that allow students to model and illustrate subtraction using numbers less than ten.
ABC Teach - Measurement
http://www.abcteach.com/directory/basics/math/measurement/
These "Everyday Measurements" worksheets give students an opportunity to measure everyday objects and/or complete perimeter.
Equal Parts
http://mathforum.org/varnelle/knum1.html
This lesson teaches students to divide a circle into pieces of equal size.
Parts to a Whole
http://mathforum.org/varnelle/knum3.html
Students use fruit to show how parts make a whole in this lesson.
Divide and Shade
http://mathforum.org/varnelle/knum2.html
This is a lesson plan for students to learn to divide and shade 1/2, 1/3, and 1/4.
Shaper Surveyer
http://www.funbrain.com/poly/index.html
The website provides math games that will help the students find the area and/or the perimeter of rectangles.
Apples A Peel to Me
http://www.iit.edu/~smile/ma9409.html
This is a lesson plan for students to use apples to make a graph and pictures to make a graph. The lesson plan can be adjusted to include other objects or items.
Proteacher Collection: Fractions
http://www.proteacher.org/c/208_Fractions.html
This Web site contains comments and ideas for teaching fractions.
A-Z Perimeter and Area
http://www.atozteacherstuff.com/pdf.htm?math/area_perimeter_tri_3.pdf
This page has six problems for students to find the perimeter of triangles. It also asks them to calculate area, but you can omit that part on the worksheet.
Cut & Paste Numbers
http://www.abcteach.com/directory_search.php?q=cut+and+paste%3A+numbers&id=3064
This page has "cut and paste" worksheets for numbers that can be used for a class activity.
Let's Measure
http://ims.ode.state.oh.us/ODE/IMS/Lessons/Content/CMA_LP_S02_BD_LPK_I06_01.pdf
"Part Four - Measuring Volume" of this several part lesson series teaches students to measure using non-customary units (water, sand, cups, buckets).
ABC Teach: Computation
http://www.abcteach.com/directory/childhood/mathematics/computation/
This website has adding and subtracting worksheets with shapes to count.
Shapes
http://www.abcteach.com/free/p/primary_signs_set1a.pdf
This page contains a pdf of geomertic shapes in bold color.
Story of Shapes
http://www.storyplace.org/preschool/activities/shapesonstory.asp?themeid=9
Short animation describing a square, a triangle, a circle, and a star.
Yummy Gummy Subtraction
http://www.education-world.com/a_tsl/archives/03-1/lesson008.shtml
This Web site gives a lesson plan using gummy bears to represent subtraction in simple math equations. Teachers can adapt the lesson to also include addition, multiplication or division.
Tracking Time Math Lesson Plan
http://www.lessonplanspage.com/MathScienceTrackingTime-CollectDataIdea4.htm
This is a lesson plan for students to track the amount of time and what they do in a 24 hour period of time.
Collecting and Organizing Data Lesson Plan
http://www.learnnc.org/lp/pages/3188
This is a lesson plan to help students learn how to collect data and organize the data into a chart using computer technology.
ProTeacher - Graphing
http://www.proteacher.com/100028.shtml
This is a collection of activities to use when teaching graphs.
ABC Teach - Graphing
http://www.abcteach.com/directory/basics/math/graphing/
This page contains various graphing activities.
Chart Reading Practice 1
http://english-zone.com/reading/charts-01.html
Students are asked to read and interpret the information in this chart.
IXL - Count Money Up to $1.00
http://www.ixl.com/math/practice/grade-2-count-money-up-to-one-dollar
This site allows students to count money amounts up to $1.00. Memberships are available for a monthly or yearly charge, but the site can also be used as a guest for free. Click "continue as a guest" to use the site for free.
IXL Math - Identify Circles, Squares, and Triangles
http://www.ixl.com/math/practice/pre-k-identify-circles-squares-triangles
This page asks students to select a circle, square, or triangle.
Education World - Circles, Squares, Triangles and Rectangles
http://www.education-world.com/a_tsl/archives/05-1/lesson010.shtml
This web site contains a variety of activities for teaching students about shapes.
Am I a Circle, Square, Triangle, or Rectangle?
http://school.familyeducation.com/preschool/activity/30662.html
This is a lesson plan for teaching students to identify circles, squares, triangles, and rectangles and
to be able to talk about shapes.
The Shape of Things
http://www.mathsolutions.com/documents/0-941355-66-7_L.pdf
This lesson is designed to help children see how a few simple shapes make up many of things we have in the world. It includes activities to give students experience with identifying and naming shapes.
Circle, Triangle, Rectangle, Square...
http://www.fldoe.org/earlylearning/pdf/CircTriRectSquLP.pdf
This lesson reinforces the idea of shapes in the environment by asking students to use two-dimensional shapes (e.g., circle, triangle, square, rectangle, oval) to create a picture.
YouTube: Count to Ten with Noboby
http://www.youtube.com/watch?v=vVktxm3p7gI
This is a vintage Sesame Street video with counting to ten with "Nobody."
YouTube: How to Count to Ten
http://www.youtube.com/watch?v=p7O4p7m2A6o
This video has a "counting to ten" lesson with Lance Friendly.
YouTube: Counting Song
http://www.youtube.com/watch?v=uxPfPyYp84E&feature=PlayList&p=F133BC0A6361FA13&playnext=1&index=6
This is a counting video that shows counting manipulatives while counting up to ten.
Counting Worksheets
http://www.firstschoolyears.com/numeracy/counting/counting.html
These worksheets, flashcards and other educational resources have been created to help develop counting skills and an awareness of the number system.
Counting to 10
http://www.dositey.com/worksheet/wcount10.htm
This is a printable worksheet. It has one through ten ladybugs to be counted.
ABC Teach - Number Flashcards
http://abcteach.com/directory/basics/abc_activities/number_flashcards/
This ABC Teach page includes flashcards for numbers 1-4, 5-8, 9-12, 13-16, and 17-20. It also includes a set of flashcards for counting to ten.
Numbers Flashcards
http://www.mes-english.com/flashcards/numbers.php
This website includes flashcards, a handout, and a PowerPoint for the following numbers: zero, one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, one hunbred.
IXL Math - Addition Sentences
http://www.ixl.com/math/practice/kindergarten-addition-sentences-sums-up-to-5
This interactive web site asks students to identify the graphic that represents the specified addition number sentence, up to five.
Shape Worksheets
http://www.tlsbooks.com/preschoolshapes.htm
This page offers a number of shape worksheets. Many of the shape worksheets incorporate color recognition, fine motor skills, numbers, and concepts such as large and small.
Number of Objects I: Learning about Counting
http://www.aaamath.com/k2g-count.html
This page includes activities for counting to twenty with numbers and words.
Online Subtraction Practice
http://www.kidport.com/Grade1/math/NumberSense/G1-M-NS-Subtraction.htm
This page provides online practice for subtracting one-digit numerals. Immediate feedback is provided to let the student know if his or her answer is correct or not.
Math: Addition and Subtraction
https://college.livetext.com/doc/2441556?print=1
This is a lesson plan for helping students develop an awareness of addition and subtraction.
Super Teacher Worksheets: Fractions
http://www.superteacherworksheets.com/fraction-cont.html
This page lists ideas for teaching fractins. The activities include fractions with candy bars, M&Ms, tortillas, folded paper, and pies.
YouTube: We Can Count to 100!
http://www.youtube.com/watch?v=VbHBYGY2fs0
This video includes a presentation of numbers 1 to 100, along with someone singing the numbers as they are shown.
Hundred Chart - Numbers 1 to 100
http://www.homeschoolmath.net/worksheets/examples/number-chart-1-100.htm
This number chart could be cut apart for students to identify numbers 1 to 100.
Interactive 100 Number Chart
http://www.apples4theteacher.com/math/games/100-number-chart-one.html
This interactive chart can be used to help students practice counting 1 to 100, and identifying numbers 1 to 100.
Number Recognition Flash Cards to 100
http://www.tlsbooks.com/ssnumberrecognitionflashcardsto100.pdf
This pdf has flashcards for numbers 1 to 100.
Identifying Time to the Hour
http://www.kidsolr.com/earlychildhood/page4.html
This page has instructional and practice activities for telling time to the hour.
Telling Time Worksheets
http://www.homeschoolmath.net/worksheets/clock.php
Teachers can use this site to create telling time worksheets to the hour, half hour, quarter hour, five minute intervals, and the minute.
Telling Time Fact Sheets
http://www.mathfactcafe.com/time/default.aspx
This "Math Fact Cafe" page allows teachers to create telling time worksheets to the hour and half hour.
Telling Time for Grades K-2
http://www.dositey.com/2008/index-page-free_activities-sub-k2-subsub-m-sub_3-time.php
This page has exercises for learning to tell time.
Counting by Tens
http://321know.com/cnt25gx2.htm
This Web site provides instruction and practice on counting by tens.
Counting by Tens Lesson Plan
http://walkacrosstexas.tamu.edu/wat_schools/lesson_plans/lesson_22.pdf
This is a lesson plan with activities for teaching students to count by 10.
Creative Ideas for Teaching Money
http://homeschooling.about.com/od/basicmath/qt/teachingmoney.htm
This page contains postings from multiple people with suggestions on how to teach money concepts. At the bottom of the page you will find worksheets you can click to download.
Place Value to 100
http://www.mathwithlarry.com/lessons/lesson003.htm
This lesson introduces place value and what it means for a digit to be in a particular place.
Telling Time: Half Hours
http://www.fi.edu/time/Journey/JustInTime/lesson2.html
This page is a lesson plan to teach telling time to the half hour.
Count by 5, Learning to Count by Five
http://math.about.com/od/countin1/ss/Counting-by-5.htm
This About.com math page includes several worksheets for counting by 5's.
Adding without Renaming
http://www.aaaknow.com/g1_27_x3.htm
This page explains how to add two two-digit numbers (for example 45 + 53).
Adding Two Digit Numbers with Regrouping
http://www.coolmath4kids.com/addition/05-addition-lesson-two-digit-numbers-01.html
This page teaches students how to regroup when adding two digit numbers.
Build Money Worksheets
http://www.mathfactcafe.com/money/default.aspx
This Math Fact Cafe page allows teachers to build counting money worksheets.
For counting like coins up to one dollar, select find total value, select one coin and select "hard" or "expert" difficulty.
For determine monetary value of unlike coins, select all four coins.
Teaching Kids to Count Money
http://www.associatedcontent.com/article/976842/homeschool_help_teaching_kids_to_count.html?cat=4
This Homeschool Help page offers suggestions for teaching kids to count money.
Create a Graph
http://nces.ed.gov/nceskids/createagraph/default.aspx
Teachers and students can use this NCES Kids' Zone page to create different types of graphs.
Two-Digit Subtraction with Regrouping
http://www.eduplace.com/math/mw/background/2/06/te_2_06_overview.html
This is a Houghton Mifflin overview of how to teach two-digit subtraction with regrouping.
How to Teach Basic Fractions with Manipulatives
http://www.ehow.com/how_4495853_teach-basic-fractions-manipulatives.html
This page has instructions for teaching fractions using manipulatives.
Teaching Money
http://www.atozteacherstuff.com/pages/490.shtml
Three skills are included in this lesson plan: identify coin/money values; write amounts of money; and count money to a specific dollar amount.
Tally Charts and Bar Graphs
http://www.brainpopjr.com/math/data/tallychartsandbargraphs/grownups.weml
Teachers can find background information and activities for tally charts and bar graphs on this Brain Pop, Jr. page. There is also a movie for students to watch.
Math Word Problems (Kidzone)
http://www.kidzone.ws/math/wordproblems.htm
The word problems on this page are listed by grade and, within each grade, by theme.
Money Toss
http://www.sites.norwood.k12.ma.us/firstplace/articles/Mathematics/Money%20Toss.pdf
This is a lesson plan that reinforces the following math skills: addition; understanding the value of U.S.
coins; decimals; and converting cents to dollars.
Math Worksheet 1: Subtraction
http://www.homeschoolmath.net/worksheets/table.php?type=-&long=0&col=2&row=10&min1=0&max1=10&step1=1&list1=&min2=0&max2=10&step2=1&list2=&min3=&max3=&step3=1&list3=&M=2&D=2&xdiv=1&exd=1&neg=1&noborrow=1&font=Default&FontSize=16pt&pad=25&ptitle=&Submit=Sub
Students subtract numbers 1-10.
Measurement: Find Perimeter
http://www.atozteacherstuff.com/pdf.htm?math/measurement_permiter_rect_in.pdf
If you click on "Download Measurement: Find Perimeter" there is a worksheet with six problems where students are asked to measure a box to the nearest inch and compute perimeter. Depending on the standard, you can have students do one or the other task.
Measuring to the Nearest Inch
http://www.montgomeryschoolsmd.org/schools/oaklandes/mathstudentworkpages/gr1un2.html
On this page you will find an example of a class activity for measuring to the nearest inch. Students practiced measuring yarn to the nearest inch using a ruler. They incorporated the measured yarn into pictures, labeling the length of each piece.
Measuring in Inches
http://www.lessonplanspage.com/MathScienceLAInchwormAndAHalfMeasuringK1.htm
This lesson teaches students to measure objects to the nearest inch using a ruler.
A to Z: Measurement
http://www.atozteacherstuff.com/Printables/Math_Worksheets/Measurement/index.shtml
This page provides a lot of measurement worksheets. Look for Measuring Lines (in) and Find Perimeter (in) or (cm).
Teach Your Child How to Use a Ruler
http://www.teachkidshow.com/teach-your-child-how-to-use-a-ruler/
This page tells parents and teachers how to teach kids to compare and contrast in measurable terms.
Inches and Feet
http://www.brainpopjr.com/math/measurement/inchesandfeet/grownups.weml
You will find a variety of information on this page related to customary and nonstandard units of measurement.
Group Graphing
http://www.fi.edu/qa98/me5/me5.html
This is a good example of how to graph information from 2 or 3 populations.
Group Graphing Lesson Plan
http://ims.ode.state.oh.us/ODE/IMS/Lessons/Web_Content/CMA_LP_S05_BC_L04_I02_01.pdf
This is an extended lesson plan for graphing information from multiple populations. Students in small groups create survey questions, collect data on the questions, organize the data into tables, and generate
several types of graphs (including bar, line, and picture) to represent the data.
Graphing Data: Introducing the Concept
http://www.eduplace.com/math/mw/background/1/04/te_1_04_graph_ideas.html
This is a simple lesson plan for introducing tally charts and picture data displays.
Soft Schools - Telling Time Worksheets
http://www.softschools.com/time/telling_time_worksheets.jsp
This Web site has pdf worksheets to download or autogenerated worksheets you can create for telling time. There is also an online game for telling time.
Factoring Numbers
http://www.freemathhelp.com/factoring-numbers.html
This Free Math Help page explains factoring.
Comparing Values - Worksheet Creater
http://www.superkids.com/aweb/tools/math/compare/
Create your own math facts worksheets (with answer sheets) for comparing values.
Comparing Numbers
http://www.tlsbooks.com/comparingnumbersto50combined.pdf
Here you will find comparing numbers worksheets. Many of the problems include two digit numbers. Some of the problems include one and two digit numbers.
A to Z: Area & Perimeter
http://printables.atozteacherstuff.com/517/area-and-perimeter-worksheets-printables/
There are links to perimeter worksheets on this Web page. Make sure you select the worksheets for inches if that is what the standard says.
Put It Away
http://homeschooling.about.com/library/blmathact15.htm
This lesson plan is for teaching students to sort and put away groceries. Putting away groceries helps children develop classifying and reasoning skills and the ability to examine data or information.
Ship Shape
http://www.uen.org/Lessonplan/preview.cgi?LPid=16269
Students need to understand that shapes have certain properties that define them, including shapes stay the same even when they are rotated, flipped, or slid.
Factoring Numbers
http://www.purplemath.com/modules/factnumb.htm
On this page you will find an explanation for factoring numbers. The first part is simple and something you would probably want to use. The later part of the explanation is a little complicated so you might want to skip that part with your students.
Perimeter
http://www.mathgoodies.com/lessons/vol1/perimeter.html
This Web page provides instruction, examples and practice problems for finding perimeter.
Less than Greater than Worksheets Generator
http://www.softschools.com/math/worksheets/lessthan_greater.jsp
This is a worksheet generator for less than and greater than. The teacher selects minimum and maximum number value for the problems. You can choose 0 for minimum and 10 maximum for simple problems; or choose a higher number for more difficult problems with two digit numbers.
Greater Than and Less Than
http://www.dadsworksheets.com/v1/Worksheets/Greater%20Than%20and%20Less%20Than.html
On this Web page you will find multiple worksheets for greater than and less than, with varying degrees of difficulty represented.
Teaching Measurement
http://www.kindergarten-lessons.com/teaching-measurement.html
This Web page focuses on non-standard units of measurement.
Comparing Weight: Lighter or Heavier
http://school.familyeducation.com/preschool/activity/30588.html
The purpose of this lesson plan is for students to compare light and heavy and use the terms lighter, heavier, lighter than, and heavier than.
How to Teach Geometric Area to Kids
http://www.ehow.com/how_2090533_teach-geometric-area-kids.html
Teachers can use these tips to teach geometric area to kids.
Common Number Patterns
http://www.mathsisfun.com/numberpatterns.html
The top of this page teaches the concept of "Arithmetic Sequences." You can use the arithmetic sequence examples to create your own number patterns increasing by one, five, and ten.
Illuminations: Magnificent Measurement
http://illuminations.nctm.org/LessonDetail.aspx?ID=L128
This Illuminations lesson introduces and provides practice with the measurable attributes of weight.
ProTeacher - Graphing
http://www.proteacher.com/100028.shtml
This is a collection of activities to use when teaching graphs.
Solving Simple Sentences by Inspection
http://www.onemathematicalcat.org/algebra_book/online_problems/solve_by_inspec.htm
In this exercise, students practice solving sentences "by inspection".
That is, they are taught to look at the sentence, stop and think, and come up with a number that makes the sentence true.
Linear Regression I
http://illuminations.nctm.org/ActivityDetail.aspx?id=82
This applet allows you to investigate a regression line, sometimes known as a "line of best fit."
Bungee Barbie
http://illuminations.nctm.org/Lessons/Barbie/Barbie-AS-Project.pdf
This activity guides students through generating data by having Barbie bungee jump and then recording the data. Students use data to generate linear functions.
Create a Graph
http://nces.ed.gov/nceskids/createagraph/default.aspx
Teachers and students can use this NCES Kids' Zone page to create different types of graphs.
Determining Functions Using Regression
http://illuminations.nctm.org/LessonDetail.aspx?ID=L725
Students will determine the function of best fit for a set of data and recognize which category of function bests fit the data and know how to use technology to obtain a function. This lesson teaches these skills and prepares students for the subsequent lesson(s), in which they will collect their own data.
Geometry Step-by-Step
http://agutie.homestead.com/
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.
Quadrilateral Explorations
http://ims.ode.state.oh.us/ODE/IMS/Lessons/Web_Content/CMA_LP_S03_BD_L09_I03_01.pdf
In this two-part lesson, ninth-grade students use coordinate geometry to identify and analyze quadrilaterals. The students work cooperatively in small groups to review the properties of
quadrilaterals. They examine and classify given quadrilaterals using slope, midpoint and distance formulas.
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