Curated OER
Work and Energy
Students show that energy is conserved in the laboratory. They calculate the work done by a force on an object as the product of the force and a displacement of the object from a reference point.
Curated OER
Proportions
Students examine the mathematical concept of proportions in an attempt to apply them in various types of problems. The real application of proportions is often found in word problems which requires a them to also practice a systematic...
Curated OER
Percents to Fractions and Decimals
Seventh graders practice converting percentages to decimals. Through guided practice, they work to solve problems involving converting fractions to decimals. Working in pairs, 7th graders compete to be the first to solve the problem...
Curated OER
Arithmetic: Revision
Pupils practice with a variety of simple equations involving addition, subtraction, multiplication and division. Explanation is followed by each block of equations given to solve. They are set loose to complete additional equations for...
Curated OER
The Microscope
For this microscope lesson students explore the compound light microscope. Students discover techniques concerning cleaning, storage and proper use of the microscope. Students discover the working parts of the compound light microscope...
Curated OER
Determination of Overall Water Quality Using a Quantitative Macroinvertebrate Survey
Students examine water samples from a local stream. They identify various types of macroinvertebrates found in that water ecosystem and perform a quantitative macroinvertebrate survey to determine the stream's water quality.