7th Grade Math Proportions in a PowerPoint Presentation
This slideshow lesson is very animated with a flow-through technique. I developed the lesson for my 7th grade class, Pre-Pre-Algebra, but it can also be used for upper level class reviews. This lesson teaches how to use equivalent ratios to determine whether two ratios form a proportion, use the Cross Products Property to determine whether two ratios form a proportion, use graphs to determine whether two ratios form a proportion, and interpret graphs of proportional relationships.
The lesson is in an editable format
so you can tailor the lesson to your class. The problems and clipart can’t be edited
due to the TOU and to maintain the copyright integrity of the product. If you need an alternative version because your country uses different measurements, units, or slight wording adjustment for language differences just email me at PrestonPowerPoints@gmail.com. I am respond to email quickly.
The presentation has 63 slides with LOTS of whiteboard practice. Use as many or as few of the problems to help your students learn each concept. For more PowerPoint lessons & materials visit Preston PowerPoints
Students often get lost in multi-step math problems. This PowerPoint lesson is unique because it uses a flow-through technique, guided animation, that helps to eliminate confusion and guides the student through the problem. The lesson highlights each step of the problem as the teacher is discussing it, and then animates it to the next step within the lesson. Every step of every problem is shown, even the minor or seemingly insignificant steps. A helpful color-coding technique engages the students and guides them through the problem (Green is for the answer, red for wrong or canceled numbers, & blue, purple & sometimes orange for focusing the next step or separating things.) Twice as many examples are provided, compared to a standard textbook. All lessons have a real-world example to aid the students in visualizing a practical application of the concept.
This lesson applies to the Common Core Standard:
Ratios & Proportional Relationships 7.RP
Analyze proportional relationships and use them to solve real-world and mathematical problems.
2. Recognize and represent proportional relationships between quantities.
a. Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.
b. Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships.
d. Explain what a point (x, y) on the graph of a proportional relationship means in terms of the situation, with special attention to the points (0, 0) and (1, r) where r is the unit rate.
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*This lesson contains 38 problems. Each problem in this lesson uses several pages in order to achieve the animated flow-through technique.