This set of resources for grades 6 through 8 includes reading passages, pre- and post-reading activities, assessments, videos, study aids, and Web links. The main topics covered are Whole Numbers and Integers, Applications of Reciprocals, Order of Real Numbers, Equations with Ratios and Proportions, Percents, Decimals, Properties of Rational Numbers, Properties of Numbers, and Mental Math. Each topic is broken down into several subtopics, making it easy to find resources that align to specific lesson material.
Because the site covers so many different topics, you can use these resources in a variety of ways. Look for the Read resources that align to lessons you're already teaching -- you can have kids use them as part of a lesson introduction. They can read the passage, complete the guided practice individually, and then share their responses with a partner or in small groups. Use the videos during whole-class instruction, pausing to discuss and explain any common areas of confusion. The assessments could work well as pre- or post-unit tests, to help you gauge how well students are understanding the concepts.Continue reading Show less
Key Standards Supported
Ratios And Proportional Relationships
Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent.
Recognize and represent proportional relationships between quantities.
Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.
The Number System
Interpret and compute quotients of fractions, and solve word problems involving division of fractions by fractions, e.g., by using visual fraction models and equations to represent the problem. For example, create a story context for (2/3) ÷ (3/4) and use a visual fraction model to show the quotient; use the relationship between multiplication and division to explain that (2/3) ÷ (3/4) = 8/9 because 3/4 of 8/9 is 2/3. (In general, (a/b) ÷ (c/d) = ad/bc.) How much chocolate will each person get if 3 people share 1/2 lb of chocolate equally? How many 3/4-cup servings are in 2/3 of a cup of yogurt? How wide is a rectangular strip of land with length 3/4 mi and area 1/2 square mi?
Understand a rational number as a point on the number line. Extend number line diagrams and coordinate axes familiar from previous grades to represent points on the line and in the plane with negative number coordinates.
Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.
Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.
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