Engaging and differentiated classroom activity that allows students to apply their understanding of partitioning fraction lines and placing fractions on the line by modeling a drag race. Students first select 3 different cars with different "speeds" (unit fractions). Then they partition and label each car's drag strip (number line) based on the unit fraction of the car. They play the game by rolling a die and advancing each car forward. A provided data sheet has them record each cars position on the fraction line after each roll. Differentiation resources are included such as pre-labeled number lines and video hook to build engagement and background knowledge.

Grade 3 · Math · 13 pages

Blank number line that can be customized according to specific content or used for student practice.

Grade K, 1, 2, 3, 4, 5, 6, 7, 8 · Math · 1 pages

Decimal number lines that can be printed for classroom use. Number lines can be used to compare and order decimals.

Grade 4, 5, 6, 7, 8 · Math · 1 pages

Fraction number lines that can be printed for classroom use. Number lines can be used to compare and order fractions.

Grade 3, 4, 5, 6, 7, 8 · Math · 1 pages

A set of printable number lines displaying positive and negative integers. Number lines can be used to support students in problem solving and when ordering integers.

Grade 6, 7, 8 · Math · 2 pages

A set of printable number lines that are ready for classroom use. Includes number lines with whole numbers ranging from 0-100 and 0-20.

Grade K, 1, 2, 3, 4, 5 · Math · 3 pages

Sometimes manipulatives such as a small car, dinosaur figure or game pieces can be moved along the number line as the student is learning to solve mathematical problems. This helps some students learn positive and negative directions as well as the concepts of addition and subtraction.

Number lines can be made readily available for students to use or refer to (e.g. at the top of a mathematical worksheet, in a laminated number line in math binder or posted on the wall).

Color-coding can be useful when using number lines for teaching specific concepts. For example, all positive integers can be labeled in black and all negative integers in red.

1. Start with an example 5 + 8 = ___.
2. Student locates the number 5 on the number line
3. Starting from the number 5, student counts 8 units to the right (positive direction)
4. Student lands on the number 13 thus finding the solution for 5 + 8 = 13
5. When working on subtraction problems, students learn the concept of taking away or moving in the negative direction (left) along the number line in order to subtract.

A number line can be used when students are learning about fractions. Large ticks can represent whole numbers and equally-spaced smaller ticks can represent parts of the whole numbers (e.g. 1/4, 1/10, etc). Students can learn how to find the fraction on the number line (e.g. 5/4 or 1 ¼) as well as determine what the points on the number line represent (e.g. the point that is equidistant between 0 and 1 is ½).

When comparing two numbers, students can refer to the number line to determine whether a number is greater than or less than another number. Using a number line is also useful when comparing positive and negative numbers.

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