Is the circumference of a circle always, sometimes, or never rational? Learners answer questions individually and also work in groups to look at sums and products of rational and irrational numbers. They must also be able to use the...

You'll need scissors, glue sticks, and mini whiteboards for this activity on rational and irrational numbers. Learners work in groups to classify a variety of expressions as rational or irrational. They are also given a mock discussion...

Check out this detailed lesson plan on conditional probability!  Learners work individually and also collaboratively to analyze the fairness of a game and justify their reasoning. it includes detailed notes and many helpful...

Interpreting algebraic expressions is a fundamental skill in beginning algebra. This lesson approaches the task in numerous ways. First, learners assess their understanding with a short worksheet on converting between words and...

Looking at numerous examples of triangles, each with different properties, geometers develop their understanding of congruency. They use the notation of a counter-example to disprove certain conjectures and prove geometric theorems and...

What do a cheetah, Audi commercial, and air have in common? They're all topics of an engaging inquiry-based, hands-on workshop for educators about background knowledge, reading strategies, the CER model, and argumentative writing. The...

Scholars first learn the definitions of the sine ratio, the cosine ratio, and the tangent ratio. After mastering these definitions, they use the new information to solve triangles.

Reinforce subtraction skills with twenty problems, all subtracting two-digit numbers from three-digit numbers. An additional five problems at the end of the page include decimals to the hundredth place. Great as a homework assignment or...

In this rounding numbers worksheet, students complete 10 math sentences as they round decimal numbers to the nearest whole number. In addition, students round 8 decimal numbers to the nearest whole number.

Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of  41 missing addend problems. Answers are available.

When multiplying two-digit numbers by one-digit numbers, use a guided set of problems like this one. There are three examples for young mathematicians to reference, and they solve 20 equations. They are required to regroup for some....

This is a progressive introductory assignment on determining the least common multiple of pairs of numbers. First, eight numbers are listed for learners to simply practice writing multiples for. They write down the first six multiples...

Six numbers (12, 32, 50,48,36, and 75) are given to learners to craft factor trees with. The first one is completed as an example in this first of two similar online worksheets. Note that where factorization is an foundational step in...

In this addition practice activity, students improve their math skills as they solve 30 problems that require them to add 2-digit numbers to 2-digit numbers

In this math worksheet, students solve 30 problems in which a fraction and a mixed number are multiplied. Examples are written horizontally on the page.

Connect science, math, and art for a true interdisciplinary lesson! Learners explore simple machines in art. Through analysis with a physics app, they identify positions of kinetic and potential energy and make conclusions about work.

Nothing fancy here ... just your run-of-the-mill Algebra party! Learners explore the patterns of linear functions while designing seating arrangements for a dinner party. Comparing the number of tables to the perimeter of the combined...

In this subtraction instructional activity, math wizards subtract three-digit numbers from different three-digit numbers. Some of the 24 problems require regrouping.

Explore the difference between stochastic and deterministic modeling through programming. First have the class write algorithms for relatively simple tasks using pseudocode. Use the Python 2.7 program app to simulate Mendel's Pea Pod...

Are your fourth graders having problems with decimals? Help them identify the place value of various numbers. Here, they describe what happens to the value of different numbers, as well as select numbers with given values in the tenths...

Ready to share the beauty of the inverse function with your classes? This algebra II lesson guides the discovery of an inverse function through a numerical, graphical, and an algebraic approach. Connections are made between the three,...

It's time for your young artists to shine! Learners examine images to determine possible similarity transformations. They then provide a sequence of transformations that map one image to the next, or give an explanation why it is...

They say you can interpret statistics to say what you want them to. Teach your classes to recognize valid experimental results! Pupils analyze experiments and identify flaws in design or statistics. 

In this assignment, math minors solve 30 subtraction problems. Two-digit subtrahends are taken away from three-digit minuends. Often, regrouping will be necessary to arrive at the difference. Terrific practice with an answer key provided!