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- From: CRS Collaboration
- Contributed By: Joe Schlessinger
Classroom Activity, Group Work,Homework,Take-Home Quiz
Time required: 15 minutes Materials: calculators if desired Objectives: Students will be able to convert between fractions and decimals. Students will be able to solve proportion problems. Prerequisites: o Conversion between rational and decimal fractions o Rounding of decimals o Solving proportion problems Description Using batting averages, students will create ratios and convert them to rounded decimals (3 places). In addition, they will take decimals and determine several possible equivalent ratios. Then using the relationship that batting average = hits/at bats, the students can use proportions or equations to find either the number of hits or the number of at bats for a given situations. Also see some teaching notes from Terrie in the first entry of the CommentsThis 80 minute lesson introduces students to the concept of nets - flat, 2D objects which can be folded to create 3D prisms. This lesson contains a quick powerpoint exploring 2D and 3D in movies and videogames, as well as prisms in everyday life. Also contains a quick assessment quiz.
Smartbaord presentation lesson on determining probability of a single event
This activity covers the mathematical concepts of percents and fractions. A group of ten students and ten chairs serve as a model for the distribution of wealth in the United States. I’ve used this twice in classes, and adult learners appreciated the relevance of the material. I found it worked best after group work on fractions and percents, because the students were less shy about participating when their whole group volunteered. I spent about 5 to 10 minutes on background material including basic definitions of wealth. As I implemented it, the activity took approximately 20 minutes. Key words: Percents, fractions, economics, social justice
Classroom Activities, Group Work,Homework,Take-Home Quiz
Time Required: 15 minutes Objectives: Express real world situations using the appropriate signed number Write the appropriate expression to illustrate a given situation Perform basic arithmetic operations with integers in a real world situation Prerequisites: addition and subtraction with integers, how to find the average of a set of numbers Description: Given real world situations, students will represent the given numbers using the appropriate signs, then write the arithmetic expression which illustrates the situation and finally perform the required arithmetic operation to answer the question.Julie Harland, Mira Costa College, has created these videos for her classes. You can also navigate to them from Julie's personal page at yourmathgal.com. If you are interested in creating or using video resources for your students. join the new discussion on this topic within this Folder (select the Technology-enhanced learning and teaching link in navigation trail at the top of this panel).
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Expressing big numbers using scientific notation
