Students use counters to decompose a number into two parts; identify a missing part of a number; and describe part-part-whole relationships.
Grade 1, Number Relationships
Grade 1, Operational Sense
In this lesson students use interlocking cubes to find two numbers that combine to make 10; add numbers using concrete materials; and record addition number sentences.
Grade 1, Quantity
Cubes, tiles, and ten frames are used in this lesson to help students learn about estimating quantities, grouping and counting quantities by 10’s, recognizing quantities in relation to 10, and comparing quantities using the terms more, less, and equal.
Grade 2, Counting and Representation
Students use base-ten blocks and a number cube to learn about counting and representation in this lesson. The overall objectives covered are: represent two- and three-digit numbers, count by 100’s, 10’s, and 1’s, trade 10 ones for a 10 and ten 10s for a hundred, and compare numbers.
Grade 2, Operational Sense
In this lesson students use number lines to improve their skills related to operations.
Grade 2, Quantity
In this lesson students use estimation to learn about fractions.
Grade 3, Counting and Representation
Students use base-ten blocks and a number cube to learn about counting and representation in this lesson. The overall objectives covered are: represent two- and three-digit numbers; count by 100’s, 10’s, and 1’s; trade 10 ones for a ten and 10 tens for a hundred; and compare numbers.
Grade 3, Number Relationships
The overall objectives covered in this lesson are: name and count fractional parts, and recognize and describe relationships between fractional parts and wholes.
Grade 3, Operational Sense
This lesson helps students to add two-digit numbers mentally and explain mental computation strategies. The lesson plan includes adaptations, extensions, and home connections.
Grade 3, Quantity
This lesson covers the overall objectives of developing an understanding of halves, thirds, and quarters as part of a set, and estimating quantities using fractions in the Number Sense and Numeration strand. The lesson plan also includes reproducible recording sheets.