**Title:** Rain Drops

**Description:**
In this lesson, students will examine the amount of annual and seasonal rainfall in four cities to compare decimals to the hundredths place. Students will add and round digits to the thousandths place. Students will utilize technology by navigating to a specific United States climate website to get relatively current and accurate data.
This unit was created as part of the ALEX Interdisciplinary Resource Development Summit.
**Standard(s): **

[SC2015] (5) 14: Use a model to represent how any two systems, specifically the atmosphere,
biosphere, geosphere, and/or hydrosphere, interact and support life (e.g.,
influence of the ocean on ecosystems, landform shape, and climate; influence of
the atmosphere on landforms and ecosystems through weather and climate;
influence of mountain ranges on winds and clouds in the atmosphere).

**Subject:**Mathematics (5), or Science (5), or Technology Education (3 - 5)

**Title:**Rain Drops

**Description:**In this lesson, students will examine the amount of annual and seasonal rainfall in four cities to compare decimals to the hundredths place. Students will add and round digits to the thousandths place. Students will utilize technology by navigating to a specific United States climate website to get relatively current and accurate data. This unit was created as part of the ALEX Interdisciplinary Resource Development Summit.

**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:** Writing Decimals

**Description:**
This lesson gets students involved through the use of the calculator and computers. Students will have the opportunity to use calculators and computers to demonstrate knowledge of decimal place value and how to write decimal numbers to the tenth and hundredths place.
**Standard(s): **

[MA2015] (5) 7: Use place value understanding to round decimals to any place. [5-NBT4]

**Subject:**Mathematics (4 - 5), or Technology Education (3 - 5)

**Title:**Writing Decimals

**Description:**This lesson gets students involved through the use of the calculator and computers. Students will have the opportunity to use calculators and computers to demonstrate knowledge of decimal place value and how to write decimal numbers to the tenth and hundredths place.

**Title:** It’s My Party!

**Description:**
Students will learn the value of money by planning their own birthday party. By using the Internet and a calculator, students will be given the opportunity for a practical real-life opportunity to solve a problem related to money exchange.
**Standard(s): **

[MA2015] (5) 16: Solve real-world problems involving multiplication of fractions and mixed numbers, e.g., by using visual fraction models or equations to represent the problem. [5-NF6]

**Subject:**Mathematics (3 - 5), or Technology Education (3 - 5)

**Title:**It’s My Party!

**Description:**Students will learn the value of money by planning their own birthday party. By using the Internet and a calculator, students will be given the opportunity for a practical real-life opportunity to solve a problem related to money exchange.

**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

**Title:** Natural Resources Shared Naturally
**Standard(s): **

[SC2015] (5) 11: Create a model to illustrate the transfer of matter among producers;
consumers, including scavengers and decomposers; and the environment.**Unit Plan Overview:** Natural resources provides what living things need to survive and thrive. This unit explores the transfer of energy throughout the food chain, investigates the amounts of rainfall in a region, examines the patterns of Native Americans settling adjacent to water, and guides students as they design animals that would survive in a wet biome. The math, science, history, and language arts lessons included are strong enough to stand alone, but when taught simultaneously, strengthen each of the 5th grade standards.
This unit was created as part of the ALEX Interdisciplinary Resource Development Summit.

**Title:**Natural Resources Shared Naturally

**Unit Plan Overview:**Natural resources provides what living things need to survive and thrive. This unit explores the transfer of energy throughout the food chain, investigates the amounts of rainfall in a region, examines the patterns of Native Americans settling adjacent to water, and guides students as they design animals that would survive in a wet biome. The math, science, history, and language arts lessons included are strong enough to stand alone, but when taught simultaneously, strengthen each of the 5th grade standards. This unit was created as part of the ALEX Interdisciplinary Resource Development Summit.