**Title:** "Bursting with Math"

**Description:**
Using "Starburst" jelly beans to sort, graph and add.
**Standard(s): **

[MA2015] (2) 26: Partition circles and rectangles into two, three, or four equal shares; describe the shares using the words *halves, thirds, half of, a third of*, etc.; and describe the whole as two halves, three thirds, or four fourths. Recognize that equal shares of identical wholes need not have the same shape. [2-G3]

**Subject:**Mathematics (K - 2)

**Title:**"Bursting with Math"

**Description:**Using "Starburst" jelly beans to sort, graph and add.

**Title:** Counting Backward from Ten

**Description:**
Students will be introduced in this lesson to the concept of orally counting backward from ten using a book, number cards, and the Internet.
**Standard(s): **

[MA2015] (0) 16: Classify objects into given categories; count the number of objects in each category, and sort the categories by count. (Limit category counts to be less than or equal to 10.) [K-MD3]

**Subject:**Mathematics (K)

**Title:**Counting Backward from Ten

**Description:**Students will be introduced in this lesson to the concept of orally counting backward from ten using a book, number cards, and the Internet.

**Title:** Fishy Addition!

**Description:**
In this lesson, students will use manipulatives to act out and solve simple addition problems.
**Standard(s): **

[MA2015] (0) 16: Classify objects into given categories; count the number of objects in each category, and sort the categories by count. (Limit category counts to be less than or equal to 10.) [K-MD3]

**Subject:**Mathematics (K)

**Title:**Fishy Addition!

**Description:**In this lesson, students will use manipulatives to act out and solve simple addition problems.

**Title:** Comparing Sets

**Description:**
In this lesson, one of a multi-part unit from Illuminations, a children s book sets the stage for encouraging students to review counting back. Students write subtraction problems and model them with cubes. They then compare sets and record differences in the form of a table. The additive identity is reviewed in the context of comparing equal sets. Several pieces of literature appropriate for use with this lesson are suggested.
**Standard(s): **

[MA2015] (2) 13: Explain why addition and subtraction strategies work, using place value and the properties of operations. (Explanations may be supported by drawings or objects.) [2-NBT9]

**Subject:**Language Arts,Mathematics

**Title:**Comparing Sets

**Description:**In this lesson, one of a multi-part unit from Illuminations, a children s book sets the stage for encouraging students to review counting back. Students write subtraction problems and model them with cubes. They then compare sets and record differences in the form of a table. The additive identity is reviewed in the context of comparing equal sets. Several pieces of literature appropriate for use with this lesson are suggested.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Begin with Buttons: Looking Back and Moving Forward

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students review the work of the previous lessons through a variety of activity stations, one of which involves using an interactive Web site. Students model with buttons and record addition and subtraction.
**Standard(s): **

[MA2015] (1) 5: Relate counting to addition and subtraction (e.g., by counting on 2 to add 2). [1-OA5]

**Subject:**Mathematics

**Title:**Begin with Buttons: Looking Back and Moving Forward

**Description:**In this lesson, one of a multi-part unit from Illuminations, students review the work of the previous lessons through a variety of activity stations, one of which involves using an interactive Web site. Students model with buttons and record addition and subtraction.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Pyramid Power

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students make sets of a given number, explore relationships between numbers, and write numbers that enumerate how many elements are in a group. They make and record sets of one more and one less than a given number. They have the opportunity to apply their reasoning and communication skills in this lesson.
**Standard(s): **

[MA2015] (2) 23: Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph. (See Appendix A, Table 1.) [2-MD10]

**Subject:**Health,Mathematics

**Title:**Pyramid Power

**Description:**In this lesson, one of a multi-part unit from Illuminations, students make sets of a given number, explore relationships between numbers, and write numbers that enumerate how many elements are in a group. They make and record sets of one more and one less than a given number. They have the opportunity to apply their reasoning and communication skills in this lesson.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Building Numbers to Five

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students make groups of zero to five objects, connect number names to the groups, compose and decompose numbers, and use numerals to record the size of a group. Visual, auditory, and kinesthetic activities are used to help students begin to acquire a sense of number.
**Standard(s): **

[MA2015] (0) 12: Fluently add and subtract within 5. [K-OA5]

**Subject:**Mathematics

**Title:**Building Numbers to Five

**Description:**In this lesson, one of a multi-part unit from Illuminations, students make groups of zero to five objects, connect number names to the groups, compose and decompose numbers, and use numerals to record the size of a group. Visual, auditory, and kinesthetic activities are used to help students begin to acquire a sense of number.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Building Sets of Eight

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore the number 8. They make and decompose sets of eight, write the numeral 8, and compare sets of up to eight objects.
**Standard(s): **

[MA2015] (0) 7: Compare two numbers between 1 and 10 presented as written numerals. [K-CC7]

**Subject:**Mathematics

**Title:**Building Sets of Eight

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore the number 8. They make and decompose sets of eight, write the numeral 8, and compare sets of up to eight objects.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Recording Two Ways

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students make sets of pasta shapes, count some away, and then record the subtraction in vertical and horizontal formats. They draw a set and cross out some shapes; then, they write in both formats the subtraction that the drawing represents.
**Standard(s): **

[MA2015] (0) 11: For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation. [K-OA4]

**Subject:**Mathematics

**Title:**Recording Two Ways

**Description:**In this lesson, one of a multi-part unit from Illuminations, students make sets of pasta shapes, count some away, and then record the subtraction in vertical and horizontal formats. They draw a set and cross out some shapes; then, they write in both formats the subtraction that the drawing represents.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Building Sets of 17 and 18

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore sets of up to18. They construct sets up to 18, write the numerals 17 and 18, and model 17 and 18 with bean sticks, cubes, and ten frames.
**Standard(s): **

[MA2015] (2) 6: Count within 1000; skip-count by 5s, 10s, and 100s. [2-NBT2]

**Subject:**Mathematics

**Title:**Building Sets of 17 and 18

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore sets of up to18. They construct sets up to 18, write the numerals 17 and 18, and model 17 and 18 with bean sticks, cubes, and ten frames.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Multiple Patterns

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore patterns that involve doubling. They use objects and numbers in their exploration and record them using a table.
**Standard(s): **

[MA2015] (3) 10: Use place value understanding to round whole numbers to the nearest 10 or 100. [3-NBT1]

**Subject:**Mathematics

**Title:**Multiple Patterns

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore patterns that involve doubling. They use objects and numbers in their exploration and record them using a table.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Create a House Number: Grades 1-2

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students look for all the possible solution sets for a mathematics problem involving a three-digit house number. They experiment with numbers to find all possible ways to add three different digits to obtain the given sum of six and explore the ways three digits can be placed together to form different three-digit numbers.
**Standard(s): **

[MA2015] (0) 9: Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem. [K-OA2]

**Subject:**Mathematics

**Title:**Create a House Number: Grades 1-2

**Description:**In this lesson, one of a multi-part unit from Illuminations, students look for all the possible solution sets for a mathematics problem involving a three-digit house number. They experiment with numbers to find all possible ways to add three different digits to obtain the given sum of six and explore the ways three digits can be placed together to form different three-digit numbers.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Further Investigating Greater Than, Less Than, and Equal To

**Description:**
Students build upon their understanding of greater than, less than, and equal to by observing quantity and making comparison using varied instructional materials. The fish cut-out, with its mouth open, represents the greater than or less than symbol; the clam cut-out represents the equal to symbol. Using fish lips as a transition point, children will apply their understanding of greater, less, and equal to the standard symbols as the teacher introduces symbolic notation at an developmentally appropriate level.
**Standard(s): **

[MA2015] (4) 7: Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons. [4-NBT2]

**Subject:**Mathematics

**Title:**Further Investigating Greater Than, Less Than, and Equal To

**Description:**Students build upon their understanding of greater than, less than, and equal to by observing quantity and making comparison using varied instructional materials. The fish cut-out, with its mouth open, represents the greater than or less than symbol; the clam cut-out represents the equal to symbol. Using fish lips as a transition point, children will apply their understanding of greater, less, and equal to the standard symbols as the teacher introduces symbolic notation at an developmentally appropriate level.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Building Sets of Ten

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students explore sets of up to 10 items and practice writing the numbers 0 through 10. Students count back from 10, identify sets of up to 10 objects, and record 10 on a chart. They also construct and decompose sets of up to 10 items. This lesson provides opportunities for reasoning and communication.
**Standard(s): **

[MA2015] (0) 16: Classify objects into given categories; count the number of objects in each category, and sort the categories by count. (Limit category counts to be less than or equal to 10.) [K-MD3]

**Subject:**Mathematics

**Title:**Building Sets of Ten

**Description:**In this lesson, one of a multi-part unit from Illuminations, students explore sets of up to 10 items and practice writing the numbers 0 through 10. Students count back from 10, identify sets of up to 10 objects, and record 10 on a chart. They also construct and decompose sets of up to 10 items. This lesson provides opportunities for reasoning and communication.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Let's Count to 10

**Description:**
In this eight-lesson unit from Illuminations, students make groups of zero to ten objects, connect number names to the groups, compose and decompose numbers, and use numerals to record the size of a group. Visual, auditory, and kinesthetic activities are included in each lesson. The unit is most appropriate for students learning at the kindergarten and grade one levels.
**Standard(s): **

[MA2015] (0) 11: For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation. [K-OA4]

**Subject:**Mathematics

**Title:**Let's Count to 10

**Description:**In this eight-lesson unit from Illuminations, students make groups of zero to ten objects, connect number names to the groups, compose and decompose numbers, and use numerals to record the size of a group. Visual, auditory, and kinesthetic activities are included in each lesson. The unit is most appropriate for students learning at the kindergarten and grade one levels.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Let's Count to 5

**Description:**
In this seven-lesson unit, from Illuminations, students make groups of zero through five objects and connect number words to the groups. They use numerals to record the size of a group. Familiar nursery rhymes and songs and visual, auditory and kinesthetic activities are included in each lesson. The unit is most appropriate for students learning at the prekindergarten and kindergarten levels.
**Standard(s): **

[MA2015] (0) 11: For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation. [K-OA4]

**Subject:**Mathematics

**Title:**Let's Count to 5

**Description:**In this seven-lesson unit, from Illuminations, students make groups of zero through five objects and connect number words to the groups. They use numerals to record the size of a group. Familiar nursery rhymes and songs and visual, auditory and kinesthetic activities are included in each lesson. The unit is most appropriate for students learning at the prekindergarten and kindergarten levels.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2

**Title:** Illuminations Activities

**Description:**
This Web page, from Illuminations, allows users to access all of Illuminations' online, interactive activities. The activities span the grades and encompass all areas of mathematics.
**Standard(s): **

[MA2015] (2) 14: Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes. [2-MD1]

**Subject:**Mathematics

**Title:**Illuminations Activities

**Description:**This Web page, from Illuminations, allows users to access all of Illuminations' online, interactive activities. The activities span the grades and encompass all areas of mathematics.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,1,2,3,4,5,6,7,8,9,10,11,12