Elementary School - Grade 3

Mathematics

An Overview of Grade 3: 2nd Edition1

The third grade curriculum is organized into 9 units that offer from 2½ to 5 weeks of work, focused on the area(s) of mathematics identified in the unit's subtitle. Because units build on each other, both within and across strands, they are designed for use in the sequence shown.

Unit Title and Number of Sessions

Trading Stickers, Combining Coins
Addition, Subtraction, and the Number System 1
17 sessions

Surveys and Line Plots Data
20 sessions

Collections and Travel Stories
Addition, Subtraction, and the Number System 2
26 sessions

Perimeter, Angles, and Area
2-D Geometry and Measurement
17 sessions

Equal Groups
Multiplication and Division
23 sessions

Stories, Tables, and Graphs
Patterns, Functions, and Change
15 sessions

Finding Fair Shares
Fractions 14 sessions

How Many Hundreds? How Many Miles?
Addition, Subtraction, and the Number System 3
19 sessions

Solids and Boxes
3-D Geometry and Measurement
13 sessions

Note that the Investigations curriculum assumes that each school day includes 70-75 minutes of math: one hour on the day’s Session, and 10-15 minutes on the Classroom Routine or Ten- Minute Math activity. Designed to fit within the calendar of a typical school year, third grade includes a total of 164 sessions (or approximately 33 weeks of work). This provides some leeway or going further with particular ideas and/or accommodating local circumstances. Although pacing will vary somewhat in response to variations in school calendars, needs of students, your school's years of experience with the curriculum, and other local factors, following the suggested pacing and sequence will ensure that students benefit from the way mathematical ideas are introduced, developed, and revisited across the year.