Numbers and Operations Teacher Resources

Many people confuse atomic mass and atomic numbers. The sixth of seven lessons in a unit requires scholars to find the weight of different groups of pennies. Then, they must solve how many of each type of penny exists in a closed system...

Does it ever seem like the more money you get, the more you spend? A short video lesson introduces the concept of goods and services changing hands in a circular flow pattern. Scholars analyze how businesses make money from selling goods...

DNA writes 64 different words but only codes for 20 different amino acids. Budding scientists learn about where each of these numbers come from and why they aren't equal with an online interactive. The resource explains the research, the...

Students are exposed to different types of sequences. in this sequencing instructional activity, students learn about simple sequences, multiplication sequences, declining sequences, the Fibonacci sequence and other sequences.

Young scholars perform mathematical operations on complex numbers. After a lecture/demo, students utilize a worksheet imbedded in this plan to gain practice performing operations on complex numbers.

In this Algebra I learning exercise, 9th graders explore the basic of beginning algebra:  the order of operations, integer operations, translating phrases and sentences, and solving basic one-step equations.  The six page...

In this place value instructional activity, students solve 15 various math operation questions. The first 5 questions ask students to figure out the operation, using a calculator, that changes one number to another. The next 5 questions...

First graders role-play addition and subtraction operations with teddy bears. They practice with the bears first, then write and solve the problems.

Young scholars use the numbers 24 and 44 as well as four more fours to create a series of equations. Each equation should equal a number from 1-20. They work to find an equation for each number.

Students, using their knowledge of place value and number sense, play this counting game in small groups, or as a whole class, to see who be the first person to reach 50 cents.

Students engage in a lesson that is concerned with the standard of comparing the quantities of whole numbers using different strategies from the concrete to the abstract. They count objects and compare them, use symbols of comparison,...

Students explore mathematics by participating in a group activity. In this number value lesson, students identify the uses for decimals and how to best estimate whole numbers based on decimals and fractions. Students collaborate with...

Students work systematically to find all the possible combinations. They Students write and solve problems which involve whole numbers and which require a choice of one or more of the four arithmetic operations.

Students implement rules for adding, subtracting, dividing, and multiplying negative integers. They write rules for each mathematical operation of negative numbers. In groups, students complete number operations. Using PDAs, they share...

Twenty-four problems fit neatly on this division worksheet. For each, youngsters must divide a three-digit number by a single digit. There will be remainders in all of the problems, so make sure not to assign it until you have thoroughly...

Young scholars explore basic algebraic operations to solve real life situations. Additional problems are presented to continue the exploration of the concept.