**Title:** Decimal Dilemma: Carlos the Centipede needs to buy tennis shoes!

**Description:**
In this lesson, Carlos the Centipede must buy new baseball shoes. His dilemma will be how to multiply decimals (money) by multiples of 10. To add to the dilemma, Carlos' baseball team needs to buy shoes too! Students will multiply decimals by 100. Students will investigate what is happening to the decimal point each time a decimal is multiplied by a multiple of 10.
**Standard(s): **

[MA2015] (6) 6: Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation. [6-NS3]

**Subject:**Mathematics (5 - 6)

**Title:**Decimal Dilemma: Carlos the Centipede needs to buy tennis shoes!

**Description:**In this lesson, Carlos the Centipede must buy new baseball shoes. His dilemma will be how to multiply decimals (money) by multiples of 10. To add to the dilemma, Carlos' baseball team needs to buy shoes too! Students will multiply decimals by 100. Students will investigate what is happening to the decimal point each time a decimal is multiplied by a multiple of 10.

**Title:** Pacaderms, Pennies, and Pasta

**Description:**
After learning of a historical event in which elephants were used to test out the Brooklyn Bridge, students construct their own bridge using very basic materials. Students weigh different items to determine the weight their bridge can withstand without collapsing.
**Standard(s): **

[MA2015] (5) 10: Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method, and explain the reasoning used. [5-NBT7]

**Subject:**Mathematics (4 - 5)

**Title:**Pacaderms, Pennies, and Pasta

**Description:**After learning of a historical event in which elephants were used to test out the Brooklyn Bridge, students construct their own bridge using very basic materials. Students weigh different items to determine the weight their bridge can withstand without collapsing.

**Title:** Decimal Dilemmas: Carlos the Centipede is Adding Decimals!

**Description:**
In this lesson, students will work in collaborative/cooperative groups to understand adding decimals. Students will use decimal grids to represent the sum of decimals. Emphasis is on using place-value, lining up the decimals and bringing the decimal down. Students will understand how important estimation of decimals is in real-life situations.
**Standard(s): **

[MA2015] (6) 6: Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation. [6-NS3]

**Subject:**Mathematics (5 - 6)

**Title:**Decimal Dilemmas: Carlos the Centipede is Adding Decimals!

**Description:**In this lesson, students will work in collaborative/cooperative groups to understand adding decimals. Students will use decimal grids to represent the sum of decimals. Emphasis is on using place-value, lining up the decimals and bringing the decimal down. Students will understand how important estimation of decimals is in real-life situations.

**Title:** Decimal Dilemma: Carlos the Centipede is Subtracting Decimals!

**Description:**
In this lesson, students will work in collaborative/cooperative groups to understand subtracting decimals. Students will use decimal grids to represent the difference of decimals. Emphasis is on using place-value, lining up the decimals and bringing the decimal down. Students will understand how important estimation of decimals is in real-life situations
**Standard(s): **

[MA2015] (6) 6: Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation. [6-NS3]

**Subject:**Mathematics (5 - 6)

**Title:**Decimal Dilemma: Carlos the Centipede is Subtracting Decimals!

**Description:**In this lesson, students will work in collaborative/cooperative groups to understand subtracting decimals. Students will use decimal grids to represent the difference of decimals. Emphasis is on using place-value, lining up the decimals and bringing the decimal down. Students will understand how important estimation of decimals is in real-life situations

**Title:** Satisfy Your Vacation Hunger!

**Description:**
Students will prepare and present a group project detailing the menu for a 5 day vacation. Each group will select a vacation destination and describe activities involved in the vacation and the meals that will be served. Groups will be given a budget of $200 for the 5 days of meals for 4 people. Students will use various forms of technology to research needed information, prepare the budget, and to present the final product. Projects will be turned in as a binder with required information and as a multimedia presentation to be shared with the class.
**Standard(s): **

[MA2015] (6) 6: Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation. [6-NS3]

**Subject:**Mathematics (5 - 6), or Technology Education (6 - 8)

**Title:**Satisfy Your Vacation Hunger!

**Description:**Students will prepare and present a group project detailing the menu for a 5 day vacation. Each group will select a vacation destination and describe activities involved in the vacation and the meals that will be served. Groups will be given a budget of $200 for the 5 days of meals for 4 people. Students will use various forms of technology to research needed information, prepare the budget, and to present the final product. Projects will be turned in as a binder with required information and as a multimedia presentation to be shared with the class.

**Title:** "All in the Family"

**Description:**
A cooperative unit where students work together and use a variety of math skills to establish budgets and compare and compute the best buys. Students will continue practicing their writing skills by writing thank you notes to local merchants.
**Standard(s): **

[MA2015] (5) 10: Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method, and explain the reasoning used. [5-NBT7]

**Subject:**English Language Arts (6), or Mathematics (3 - 5)

**Title:**"All in the Family"

**Description:**A cooperative unit where students work together and use a variety of math skills to establish budgets and compare and compute the best buys. Students will continue practicing their writing skills by writing thank you notes to local merchants.

**Title:** Dream Vacation

**Description:**
This unit teaches students to plan a trip with an itinerary, remain within a budget, and work cooperatively. It is a technology-based project that combines a study of mathematics, economics, geography, and social studies.
**Standard(s): **

[MA2015] (4) 9: Fluently add and subtract multi-digit whole numbers using the standard algorithm. [4-NBT4]

**Subject:**Information Literacy (K - 12), or Mathematics (4 - 5), or Technology Education (3 - 5)

**Title:**Dream Vacation

**Description:**This unit teaches students to plan a trip with an itinerary, remain within a budget, and work cooperatively. It is a technology-based project that combines a study of mathematics, economics, geography, and social studies.

**Title:** Numbers and Language

**Description:**
In this five-lesson unit, from Illuminations, students participate in activities in which they focus on the role of numbers and language in real-world situations. Students discuss, describe, read, and write about numbers they find in familiar real-world situations. An emphasis on using components of language helps students build a broader vocabulary of numbers than the traditional symbolic representation of numbers.
**Standard(s): **

[ELA2015] (8) 19: By the end of the year, read and comprehend literary nonfiction at the high end of the
Grades 6-8 text complexity band independently and proficiently. [RI.8.10]

**Subject:**Language Arts,Mathematics

**Title:**Numbers and Language

**Description:**In this five-lesson unit, from Illuminations, students participate in activities in which they focus on the role of numbers and language in real-world situations. Students discuss, describe, read, and write about numbers they find in familiar real-world situations. An emphasis on using components of language helps students build a broader vocabulary of numbers than the traditional symbolic representation of numbers.

**Thinkfinity Partner:**Illuminations

**Grade Span:**K,PreK,1,2,3,4,5,6,7,8

**Title:** Finding Products

**Description:**
In this lesson, one of a multi-part unit from Illuminations, students examine the role of commutativity and the multiplicative identity, play a multiplication game, and explore products where one of the factors is 6. They also create a personal multiplication chart.
**Standard(s): **

[MA2015] (5) 22: Relate volume to the operations of multiplication and addition, and solve real-world and mathematical problems involving volume. [5-MD5]

**Subject:**Mathematics

**Title:**Finding Products

**Description:**In this lesson, one of a multi-part unit from Illuminations, students examine the role of commutativity and the multiplicative identity, play a multiplication game, and explore products where one of the factors is 6. They also create a personal multiplication chart.

**Thinkfinity Partner:**Illuminations

**Grade Span:**3,4,5

**Title:** Percents 5: Percents & Money

**Overview:**
This podcast is part of a series on operations with percents. Designed with the middle school student in mind, it is a refresher on the basics of solving word problems including money and percents. The lesson uses the bar method to solve the problems. The podcast can be used as a lesson or as a supplement to a lesson. A suggestion would be to stop the lesson as it goes along and allow the students to work problems out themselves. **Standard(s): **

[MA2015] (7) 9: Solve multistep real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form, convert between forms as appropriate, and assess the reasonableness of answers using mental computation and estimation strategies. [7-EE3]

**Overview:**

This podcast is part of a series on operations with percents. Designed with the middle school student in mind, it is a refresher on the basics of solving word problems including money and percents. The lesson uses the bar method to solve the problems. The podcast can be used as a lesson or as a supplement to a lesson. A suggestion would be to stop the lesson as it goes along and allow the students to work problems out themselves.

**Title:** Number and Operations Web Links

**Description:**
This collection of Web links, reviewed and presented by Illuminations, offers teachers and students information about and practice in concepts related to arithmetic. Users can read the Illuminations Editorial Board's review of each Web site, or choose to link directly to the sites.
**Standard(s): **

[MA2015] (5) 26: Classify two-dimensional figures in a hierarchy based on properties. [5-G4]

**Subject:**Mathematics

**Title:**Number and Operations Web Links

**Description:**This collection of Web links, reviewed and presented by Illuminations, offers teachers and students information about and practice in concepts related to arithmetic. Users can read the Illuminations Editorial Board's review of each Web site, or choose to link directly to the sites.

**Thinkfinity Partner:**Illuminations

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

**Title:** Communicating about Mathematics Using Games: Playing Fraction Tracks

**Description:**
Mathematical games can foster mathematical communication as students explain and justify their moves to one another. In addition, games can motivate students and engage them in thinking about and applying concepts and skills. This e-example from Illuminations contains an interactive version of a game that can be used in the grades 3-5 classroom to support students' learning about fractions. e-Math Investigations are selected e-examples from the electronic version of the Principles and Standards of School Mathematics (PSSM). The e-examples are part of the electronic version of the PSSM document. Given their interactive nature and focused discussion tied to the PSSM document, the e-examples are natural companions to the i-Math investigations.
**Standard(s): **

[MA2015] (5) 26: Classify two-dimensional figures in a hierarchy based on properties. [5-G4]

**Subject:**Mathematics

**Title:**Communicating about Mathematics Using Games: Playing Fraction Tracks

**Description:**Mathematical games can foster mathematical communication as students explain and justify their moves to one another. In addition, games can motivate students and engage them in thinking about and applying concepts and skills. This e-example from Illuminations contains an interactive version of a game that can be used in the grades 3-5 classroom to support students' learning about fractions. e-Math Investigations are selected e-examples from the electronic version of the Principles and Standards of School Mathematics (PSSM). The e-examples are part of the electronic version of the PSSM document. Given their interactive nature and focused discussion tied to the PSSM document, the e-examples are natural companions to the i-Math investigations.

**Thinkfinity Partner:**Illuminations

**Grade Span:**3,4,5