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# Browse results: Operations

RESULTS 1-13 OF 13

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## Creating Equal Shares

Students practice fractions by sharing certain numbers of objects among different numbers of people. They begin with unit fractions and move to sharing multiple objects among multiple people, in which a < b, and to produce fractions less than one.

3-6

Lesson Plan

## Estimation

Students practice their estimation skills by estimating time and numbers of objects in situations in which counting is not feasible or necessary.

3-6

Lesson Plan

## Filmmaking on a Budget

Students practice column addition in relation to budgets and are asked to create budgets that meet particular totals.

3-5

Lesson Plan

## Introduction to Negative Numbers

Students are introduced to the concept of negative numbers through simple equations and the use of a number line that is extended beyond zero in the negative (left) direction.

4-8

Lesson Plan

## Inverses as a Form of Undoing

Students learn about inverse operations and how to write the inverse of a sequence of operations. They practice by solving two-step equations and checking their solutions.

5-8

Lesson Plan

## Multiplication as Combinations

Students learn to systematically identify all possible combinations, first among 2 objects with 3 possibilities each and then among 3 objects with 2, 2 and 4 possibilities each.

3-6

Lesson Plan

## Multiplication as Replication

Students build tables and use patterns as an introduction to multiplication. They are encouraged to use multiplication by 10 or 100 for larger values as the beginnings of commutativity and distribution are introduced.

2-5

Lesson Plan

## Multiplication by 10

Students practice multiplying by 10 by adjusting a recipe to be 10 times larger. They examine the results to learn the procedure of adding a 0 to the multiplicand when multiplying by 10. They also practice dividing by 10 in the same manner.

3-6

Lesson Plan

## Planning a Budget

Students practice column addition and lining up decimal points in the context of money while they watch a video segment. Assessments provide more practice adding numbers in columns, and students troubleshoot an error in misaligned decimal addition.

3-5

Lesson Plan

## Sharing As a Model for Division

Students use manipulatives to share objects among different sized groups and practice dealing rounds as a division method. They learn to apply the method to problems using numbers and how to write these problems as multiplication and division facts.

3-5

Lesson Plan

## Strategies for Dividing Numerically

Students practice division and the concept of breaking a total into parts that are smaller and more easily divided.

3-5

Lesson Plan

## Summing Integers:Positive and Negative

Students add, subtract and compare positive and negative integers.

4-8

Lesson Plan

## Using Combinations to Solve a Puzzle

Students solve puzzles by eliminating possible solutions using clues. Assessments test whether students can predict the number of combinations needed to solve similar puzzles.

2-5

Lesson Plan

RESULTS 1-13 OF 13