Casey Runner: Adding and Subtracting Positive and Negative Numbers
A Learning Activity is a strategy a teacher chooses to actively
engage students in learning a concept or skill using a digital tool/resource.
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Phase:
During/Explore/Explain
Activity:
Provide the students with a link to the website How to Add and Subtract Positive and Negative Numbers from Math is Fun. The class will begin by reading the webpage aloud together from the website. Make sure to point out the two rules: (1) two like signs become addition and the sign stays the same, (2) two unlike signs become subtraction. After subtracting, take the sign of the larger number.
Stop at the Now Play With It section and give the students time to “play” with the interactive Casey Runner by choosing either a positive or negative sign to solve the equation. The goal is to move the runner closer to the finish line. If students choose the correct sign, the runner will move closer to the finish line. If students choose incorrectly, the runner will run backward away from the finish line. The teacher should circulate around the room observing for struggling students. Allow students enough time to play with interactive.
Continue scrolling down and reading the webpage aloud with the students while working the examples given together to ensure understanding. Stop at the section, “YOOO TOOO”. Students will complete this ten-question quiz as their assessment.
Assessment Strategies:
The ten questions in the section titled YOOO TOOO will be used as an assessment tool to check for mastery of the standard.
Advanced Preparation:
The teacher and students will need internet-connected devices.
Variation Tips (optional):
Students who are struggling may need to be paired with stronger students.
This learning activity can be completed as a whole class activity or as an independent activity.
Notes or Recommendations (optional):
ALCOS 2019
7.4). Apply and extend knowledge of operations of whole numbers, fractions, and decimals to add, subtract, multiply, and divide rational numbers including integers, signed fractions, and decimals.
a. Identify and explain situations where the sum of opposite quantities is 0 and opposite quantities are defined as additive inverses.
b. Interpret the sum of two or more rational numbers, by using a number line and in real-world contexts.
c. Explain the subtraction of rational numbers as the addition of additive inverses.
d. Use a number line to demonstrate that the distance between two rational numbers on the number line is the absolute value of their difference and apply this principle in real-world contexts.
e. Extend strategies of multiplication to rational numbers to develop rules for multiplying signed numbers, showing that the properties of the operations are preserved.
f. Divide integers and explain that division by zero is undefined. Interpret the quotient of integers (with a non-zero divisor) is a rational number.
g. Convert a rational number to a decimal using long division, explaining that the decimal form of a rational number terminates or eventually repeats.
Keywords and Search Tags:
adding, Integers, negative numbers, number line, positive numbers, subtracting