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# Math Snacks

#### presented by Richard Rupp

Math Snacks powerpoint

# Making Mathematics User Friendly with Rational Numbers

presented by Carmen Johnson

# Activity One:  Hershey’s Fraction Book

## Objectives:

4.3(B) Decompose a fraction in more than one way into a sum of fractions with the same denominator using concrete and pictorial models and recording results with symbolic representations.

5.3(H) Represent and solve addition and subtraction of fractions with unequal denominators referring to same whole using objects and pictorial models and properties of operations.

Process Standards:

5.1 (A) Apply mathematics to problems arising in everyday life, society, and in the work place

5.1(C) Select tools using real objectives manipulatives, paper and pencil and technology as appropriate, and techniques including mental math estimation and number sense as appropriate to solve problems.

Hershey Chocolate Lesson Plan

Hershey Chocolate Bar Powerpoint

Hershey Chocolate Bar Activity Page

# Activity Two:  The Doorbell Rang

## Objectives:

5.3 (J) represent division of a unit fraction by a whole number and the division of a whole number by a unit fraction such as 1/3 ÷ 7 and 7 ÷ 1/3 using objects and pictorial models, including area models.

5.3 (I) represent and solve multiplication of a whole number and a fraction that refers to the same whole using objects and pictorial models, including area models.

Doorbell Rang Powerpoint

Doorbell Rang Activity Page

# Exploring Fractions

• Simplifying fractions
• Least Common Multiple, LCD