Mathematics 2

Unit 1: Number

Organizing idea: quantity is measured with numbers. Counting and understanding numbers up to 1000, adding and subtracting within 100 (with regrouping), and sharing one whole into equal parts named by unit fractions.

• Counting and grouping to 1000
• Comparing and ordering numbers

• Adding with regrouping
• Subtracting with regrouping

• Splitting a whole into equal parts
• Naming one equal part

Unit 2: Geometry

Organizing idea: shapes are defined by their attributes. Describing flat shapes by their sides and corners, and describing solid shapes by their faces, edges, and corners.

• Sides and corners of flat shapes
• Faces, edges, and corners of solids

Unit 3: Measurement

Organizing idea: length can be measured with units. Measuring how long something is by laying same-size units end to end and counting them.

• Measuring with same-size units
• Telling how long, and comparing

Unit 4: Patterns

Organizing idea: patterns help us predict. Skip counting by 2s, 5s, and 10s, and finding the growing or repeating rule so you can say what comes next.

• Skip counting by 2s, 5s, and 10s
• Finding the rule and what comes next

Unit 5: Time

Organizing idea: duration is an amount of time. Telling time on a clock to the quarter hour, and comparing how long different activities take.

• Reading a clock to the quarter hour
• Comparing how long things take

Unit 6: Statistics

Organizing idea: data can be shown in different ways. Collecting answers and showing them in tally charts and picture graphs, then reading them to answer a question.

• Collecting answers in a tally
• Showing data in different pictures