Curated OER
Colorimetric Determination of the Concentration of Blue Food Coloring in Sport Drinks
Seventh graders determine the amount of blue food coloring in sports drinks and plot the concentration and absorbance data. They summarize the data and determine why companies need to know the amount of chemicals in their products.
Curated OER
Parts Per Million
Students perform serial dilution of food coloring experiment with partner, examine concentration levels, and differentiate parts per million (PPM) and parts per billion (PPB). Students complete pre-lab and post-lab questions and data table.
PB Works
Numbers Lesson 3 - Hershey Bar Fractions
Talk about delicious math! Pupils solve problems involving rational numbers and analyze real-life problems to find solutions in a pre-algebra class. They discuss the sections of a Hershey's bar in terms of fractions and decimals before...
Curated OER
A Matter of Timing
In this orbital period worksheet, students solve 2 problems about satellites and their orbits. They determine how many days it takes for two satellites to be in "opposition", they find the least common factor between their orbit periods...
Carstens Studios
Math Doodles
Discover the joy and excitement of improving your math fluency through four different puzzles. Combine those with 25 different ways to represent numbers and you have hours of enjoyment that can be fun outside of the classroom as well.
Curated OER
Comparing Ratios
For this comparing ratios worksheet, students solve and complete 3 different problems using the screens shown. First, they write a ratio that compares the shaded part to unshaded part illustrated. Then, students use the same grid to...
Curated OER
Mixture Word Problems
In this mixture word problem worksheet, students read problems and determine the correct amount of mixture needed for the given situation. This two-page worksheet contains 10 multi-step problems. Answers are provided on the last page.
Curated OER
Box-and-Whisker
Seventh graders are introduced to the concept of box-and-whisker plots. A step-by-step process for creating a box-and-whisker plot is provided. The goal of the lesson is that students study the components of a box-and-whisker plot and be...
Curated OER
Groundwater Detectives
Learners measure the pH of soil samples from a hypothetical site to locate a contaminant spill and will predict the direction of groundwater flow using mathematical modeling. They use the engineering design process to develop...