Elementary Mathematics

4th Grade Unit 5 Overview and Standards


Use these links to access resources for this unit.


Before You Begin This Unit...
  Unit at a Glance

From 3rd Grade, students bring their ability to add and subtract 2-digit and 3-digit numbers. They also bring mastery of addition combinations and their related subtraction facts. Look for your students to bring at least 1 addition strategy they can use fluently and efficiently to their work in this unit. Students should also be able to choose and carry out appropriate subtraction strategies. Place value and computational strategies are interwoven throughout this unit in order to help students develop their ability to estimate sums and differences.

Some of your students may have working knowledge of the U.S. standard algorithm for addition. This unit will help students connect the algorithm to other strategies that highlight place value and property understandings.

In earlier grades, students solve a variety of subtraction problems. In 4th grade, students visualize subtraction situations with a focus on missing-part problems. Visualizing the situation supports students’ understanding and representation of the problem and also helps them consider the relationship between addition and subtraction.

Suggested Dates:
October 20- November 25

Estimated Duration:

25 days

*Investigation 1: 6 lessons (Incl. 1.5A, but combine 1.5 & 1.6)
*Investigation 2: 5 lessons (combine 2.3 & 2.4) *Investigation 3: 6 lessons (Incl. 3.6A)
*Investigation 4: 8 lessons (Incl. 4.4A)

 Standards Addressed in the Unit

Link to the CCSS Unpacking Document- Updated Sept. '15

4.NBT.1
Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.

4.NBT.2 Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.

4.NBT.3 Use place value understanding to round multi-digit whole numbers to any place.

4.NBT.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.

4.MD.2 Solve problems involving measurement and conversion of measurements from a larger unit to a smaller unit.