Graphing Solutions To Inequalities On A Number Line
Eighth graders graph solutions to problems on a number line. After discussing algebraic expressions, 8th graders discuss how to solve them using an inequality. They observe examples and then work problems at their desks and on the board.
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Placing a Square Root on the Number Line
There are many ways to approach finding the rational approximation of an unknown square root. Here is a problem that will help math learners make a connection between square roots and their order on a number line. As usual, determine two...
7th - 9th Math CCSS: Designed
Micro-Geography of the Number Line
Young mathematicians dive into the number line to discover decimals and how the numbers infinitely get smaller in between. They click the zoom button a few times and learn that the number line doesn't just stop at integers. Includes a...
5th - 8th Math CCSS: Adaptable
Add Integers with the Same Sign Using Number Lines
When you add two numbers with the same sign on a number line, you move in the same direction. Show your mathematicians that the sum of two positives is always a positive, while the sum of two negatives is always a negative.
5 mins 6th - 8th Math CCSS: Designed
Add Rational Numbers Using Algorithms and Number Lines
Remind number crunchers that integers and rational numbers are related by using the Venn diagram shown in this video. It applies what students have learned about integers to all rational numbers. Reviewing absolute value, it shows how to...
4 mins 6th - 8th Math CCSS: Designed
Solve Ratio Problems Using Double Number Lines
Organization is the best way to make sure that ratios are set up correctly to be proportional. This video reviews how to solve ratio problems with addition and multiplication, shown in more detail in the prior two videos of this series,...
4 mins 5th - 8th Math CCSS: Designed