California State University
Csu Chico: Population Genetics
This is a group of Mendelian Genetics exercises that are designed to show the evolution of a trait within a population. The site covers instruction in calculating genotypic and allelic frequencies, determining dominance, the...
Hopelink
Hopelink: Teaching Percentages
Students can brush up on percentage skills with this lesson and calculate percentages using the "Percent Tricks method." For students to successfully use this method, they must have the ability to multiply and divide whole numbers.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Percent With a Calculator
This tutorial explains how to use a calculator to find a percent. There is also a practice section at the end of the lesson.
Saddleback College
Algebra2go: Digits and Place Value: Part 1 Problem Sets
Select a problem set, then use your mouse or tab key to select a question. Fill in the blank with the correct answer for each problem. When you have answered all of the questions, ask Charlie how you did.
Saddleback College
Algebra2go: Addition and Subtraction Problem Sets
This resource contains 3 problem sets. Each problem set contains six questions. Select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all of the questions, ask...
Saddleback College
Algebra2go: Introduction to Multiplication Problem Sets
This resource contains three sets of practice problems for mastering multiplication. You can select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all of the...
Khan Academy
Khan Academy: Rigging Rotation Deformers
In this 6-problem quiz/practice, students rig the model of the lamp. Then they add a rotate deformer to each of the four joints of the model. They click to see if they are correct and continue with the next problem.
Khan Academy
Khan Academy: Velocity and Acceleration Vectors
This 11-problem quiz/practice helps students to understand how velocity and acceleration can be represented using vectors.
Khan Academy
Khan Academy: Net Forces
This is a 5-problem quiz/practice to help students better understand how to sum forces to find the net force on a particle.
Khan Academy
Khan Academy: Particle Collisions
Test your understanding of how to simulate the collision of two particles with this 8-problem quiz/practice.
Khan Academy
Khan Academy: Weighted Subdivision
Use this 7-problem quiz/practice to help understand what happens in subdivision with different weights
Khan Academy
Khan Academy: Weighted Average of Three Points
Now it's your turn to prove you can calculate the weighted average in this 7-problem quiz/practice. Later on we can let the computer do these calculations for us (phew!)
Khan Academy
Khan Academy: Subdivision Weights
This 7-problem quiz/practice helps students understand how different weights effect the subdivision shape.
Khan Academy
Khan Academy: Interactive: Weighted Subdivision
This interactive tool helps students to better understanding weighted subdivision.
Khan Academy
Khan Academy: Counting Two Headed Robots (Practice)
This is a 7-problem quiz/practice counting robot combinations with multiple parts.
Khan Academy
Khan Academy: Gamut (Practice)
This is a six-problem quiz/practice to help understand what a color gamut is and why it is important.
Khan Academy
Khan Academy: Color Grading (Practice)
This is a 4-problem quiz/practice to help understand the difficulties in showing a movie on different devices and how these difficulties can be overcome.
Khan Academy
Khan Academy: Understanding Spectra
This is an 8-problem quiz/practice to increase students' understanding of spectra. Color is a property of light. Test your understanding of this concept and how light can be represented in with a spectral power distribution.
Khan Academy
Khan Academy: Robot Combinations (Practice)
This is a 7-problem quiz/practice counting robot combinations with two parts.
Khan Academy
Khan Academy: Hsl Color Space (Practice)
In this 10 quiz/practice activity, students use a slice through the HSL cylinder to problems.
Khan Academy
Khan Academy: Calculating Contour Lines (Practice)
This is a 7-problem quiz/practice calculating contour lines. We can We can create a surface based on the position of particles by treating each particle as a heat source and then drawing a line through each point that has a particular...
Khan Academy
Khan Academy: Calculating Factorials (Practice)
This is a 7-problem quiz/practice on calculating factorials.
Khan Academy
Khan Academy: Counting Casts 1
This is a 7-problem quiz/practice, Using the interactive tool, determine how many different casts are possible.
Khan Academy
Khan Academy: Combinations
This 4-problem quiz/practice using introductory combination problems like if you have 5 friends and can pick 2 of them to join you on a boat ride, how many different groups of friends could you take with you?