Math Curriculum Level B Key Lessons
Level B Units
Click on the tabs below to view the key lessons for each unit of Level B. Within each key lesson, you will find related lessons that support the key lesson’s topic. Some key lessons below are labeled as “optional.” Instructors with a faster-paced class that only needs to review major concepts might skip these lessons, while instructors whose students need more thorough coverage and review of the content or that have not completed a related unit might use these optional lessons.
Click on the hyperlinked lesson description to learn more about each key lesson. The numbers show the grade, unit, and lesson number of the lesson.
Key Lesson |
Lesson Topic |
|
2.5.6 |
|
|
2.5.10 |
Key Lesson |
Lesson Topic |
| 2.7.4 (Optional) | Adding and subtracting three-digit numbers without regrouping |
| 2.7.9 (Optional) | Adding three-digit numbers with regrouping |
| 2.7.15 (Optional) | Decomposing tens and hundreds to subtract |
| 2.9.1 (Optional) | Sums and differences within 20 |
| 2.9.12 | Word problems |
| 2.9.13 | Word problems |
| 3.3.6 | |
| 3.3.10 | Subtract three-digit numbers |
Key Lesson |
Lesson Topic |
| 2.6.7 (Optional) | Partitioning shapes into 2, 3, or 4 equal parts |
| 3.5.2 | Unit fractions |
| 3.5.3 | Representing and naming non-unit fractions |
| 3.5.6 | Showing unit fractions on the number line |
| 3.5.11 | Showing equivalent fractions |
| 3.5.15 | Comparing fractions (same denominator) |
Key Lesson |
Lesson Topic |
| 2.3.5 (Optional) | Measure in meters and centimeters |
| 2.3.9 (Optional) | Estimate and measure with feet and inches |
| 3.6.3 | Measure in halves and fourths of an inch |
| 3.6.5 | Mark data including halves and fourths on line plots |
| 3.6.15 | Solving measurement problems |
Key Lesson |
Lesson Topic |
| 3.2.9 | Measure to find the area |
| 3.7.4 | Rectangles, rhombuses, and squares |
| 3.7.8 | Find perimeter |
| 3.7.12 | Same area, different perimeter |
Key Lesson |
Lesson Topic |
| 3.1.3 (Use some or all) | Scaled picture graphs |
| 3.1.8 (Use some or all) | Questions about scaled bar graphs |
Level B Units
Click on the buttons below to view the key lessons for each unit of Level B. Within each key lesson, you will find related lessons that support the key lesson’s topic. Some key lessons below are labeled as “optional.” Instructors with a faster-paced class that only needs to review major concepts might skip these lessons, while instructors whose students need more thorough coverage and review of the content or that have not completed a related unit might use these optional lessons.
Click on the hyperlinked lesson description to learn more about each key lesson. The numbers show the grade, unit, and lesson number of the lesson.
Number Base Ten
Addition and Subtraction
- 2.7.4 (Optional): Adding and subtracting three-digit numbers without regrouping
- 2.7.9 (Optional): Adding three-digit numbers with regrouping
- 2.7.15 (Optional): Decomposing tens and hundreds to subtract
- 2.9.1 (Optional): Sums and differences within 20
- 2.9.12: Word problems
- 2.9.13: Word problems
- 3.3.6: Add three-digit numbers
- 3.3.10: Subtract three-digit numbers
Multiplication and Division
- 3.1.13: Introducing multiplication equations
- 3.1.14: Multiplication equations with unknowns (using diagrams)
- 3.1.20: Commutative property of multiplication
- 3.2.5: Connecting area to multiplication
- 3.2.13: Finding area of shapes made up of rectangles (without grid lines)
- 3.4.3: Division: finding the number in each group and finding the number of groups
- 3.4.6: Division as an unknown factor
- 3.4.11: Multiplication strategies with rectangles (ungridded)
- 3.4.14: Multiplying teen numbers using area diagrams
- 3.4.17: Two-step word problems
- 3.4.20: Dividing two-digit numbers by single-digit numbers
- 3.4.21: Two-step word problems
Fractions
- 2.6.7 (Optional): Partitioning shapes into 2, 3, or 4 equal parts
- 3.5.2: Unit fractions
- 3.5.3: Representing and naming non-unit fractions
- 3.5.6: Showing unit fractions on the number line
- 3.5.11: Showing equivalent fractions
- 3.5.15: Comparing fractions (same denominator)
Measurement
- 2.3.5 (Optional): Measure in meters and centimeters
- 2.3.9 (Optional): Estimate and measure with feet and inches
- 3.6.3: Measure in halves and fourths of an inch
- 3.6.5: Mark data including halves and fourths on line plots
- 3.6.15: Solving measurement problems
Geometry
- 3.2.9: Measure to find the area
- 3.7.4: Rectangles, rhombuses, and squares
- 3.7.8: Find perimeter
- 3.7.12: Same area, different perimeter
Data
- 3.1.3 (Use some or all): Scaled picture graphs
- 3.1.8 (Use some or all): Questions about scaled bar graphs
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