# All Lessons

## Use Arrays (Multiplication)

(D) Determine the total number of objects when equally-sized groups of objects are combined or arranged in arrays up to 10 by 10

3.4.E(E) Represent multiplication facts by using a variety of approaches such as repeated addition, equal-sized groups, arrays, area models, equal jumps on a number line, and skip counting

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## Determine how Multiplication and Division are Related

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## Subtract Multi-Digit Numbers With Decomposing

This lesson covers how to subtract numbers with decomposing. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will line up the numbers by place value of their digits, subtract the digits in each place value, decompose the number (if needed), and then interpret the difference. In addition to the lesson, there are four pages of Independent Practice with questions modeled after the assessment items.

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## Order Whole Numbers (Thousands Place)

This number sense lesson focuses on ordering whole numbers. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students read the problem and write the numbers in the place value chart. Then, they compare the digits with the same place value and write the digits in order. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.

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## Add Money Amounts

This number sense lesson focuses on adding money amounts. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students read the problem and set up the addition by lining up the decimals. Then, they find the sum of the money amounts by adding digits in each column (starting from the right) and writing in the decimal point and the dollar sign. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.

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## Add Multi-Digit Numbers (with Composing)

This lesson covers how to add numbers with composing. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will line up the numbers by the place value of their digits, add the digits in each place value, compose the number (if needed), and then interpret the sum. In addition to the lesson, there are four pages of Independent Practice with questions modeled after assessment items.

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## Round Numbers to the Tens and Hundreds Place

This number and operations in base ten lesson teaches students how to round numbers to the nearest 10 and 100. The lesson includes research-based strategies and strategic questions that prepare students for assessments. The focus of this lesson is to look at the two possible rounding values, then decide whether to round down or round up. This lesson uses a variety of strategies including number lines to visualize the number being rounded.

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## Solve Subtraction Word Problems (With Decomposing)

(Y3) Describe, continue, and create number patterns resulting from performing addition or subtraction (ACMNA060)

ACMNA083(Y4) Find unknown quantities in number sentences involving addition and subtraction and identify equivalent number sentences involving addition and subtraction (ACMNA083)