Curated OER
Beginning to Add Decimals Mentally
In this addition learning exercise, learners solve ten math problems in which they add a single digit number and a decimal number. Learners solve these problems in their head and write the answers in the boxes. The answers are available...
Mathematics Vision Project
Module 3: Geometric Figures
It's just not enough to know that something is true. Part of a MVP Geometry unit teaches young mathematicians how to write flow proofs and two-column proofs for conjectures involving lines, angles, and triangles.
DK Publishing
Addition Practice #2
Encourage young scholars to tap into their inner math-whiz as they add three and four-addend equations. The first 36 problems each have three addends (none over two-digit), and are written horizontally. Next, they complete eight more...
Curated OER
Finding 10s
For beginners to addition, sets of objects are the ideal way to make this concept understandable. For each of these sets they ring 10 and count the remaining. Then, scholars fill in the addends as 10 and the remaining number. The sums...
Curated OER
More and Less
Mental mathematicians add and subtract 1, 10, and 100 from sets of numbers. Each set of one, two and three-digit numbers gives scholars a chance to practice their addition and subtraction skills. There are 62 whole numbers in all. What...
EngageNY
Secant Lines; Secant Lines That Meet Inside a Circle
Young mathematicians identify different cases of intersecting secant lines. They then investigate the case where secant lines meet inside a circle.
Willow Tree
Common Geometric Figures
Geometry could be called the study of figures. An overview of the figures found in a typical geometry course contains a study of different triangles, quadrilaterals, and regular polygons.
Curated OER
Number Search Y2 10x Table
In this multiplication fact practice worksheet, students solve a math puzzle that requires them to find the sums of 10 multiplication problems in a number search grid.
Curated OER
Missing Number Sum Activity
In this missing number worksheet, students fill in missing addends to reach the sum of 19, 8 problems total, then answer additional related questions.
Curated OER
Make 50
In this addition worksheet, students figure out the missing numbers in 8 addition problems that equal the sum of 50. Students write down all the pairs of even numbers with a total of 50 and all the different pairs of even numbers with a...
Curated OER
Learning Styles in Math
Students discover which learning style works best for them in a math setting. In this math comprehension lesson plan, students create different combinations of numbers that equal the sum of 11. Students determine if they are better...
Curated OER
Algebra 2 and Trigonometry Practice Series #4
In this sum of a series worksheet, students complete 6 multiple choice problems relating to the topic. They create an infinite series that converges to -2. Students graph one function on their graphing calculator.
Curated OER
Adding: Written Questions
Sometimes, written addition problems can confuse students. For this addition worksheet, students find sums for 10 written questions such as: "Find the sum of 30 and 50."
Curated OER
Triangle Inequality
Students discover that the sum of the lengths of any two sides of a triangle must be greater than the third side. They are shown how a triangle is formed using three strips such as that the triangle is seen inside the strips.
Curated OER
Add and Compare enrichment 10.5
In this addition worksheet, learners add the ones columns and fill in the carry squares, add the tens, then order the sums. Students solve ten problems.
Curated OER
Add Fractions With Unlike Denominators reteach 10.3
In this adding fractions with unlike denominators worksheet, students observe examples of writing equivalent fractions with the same denominators and apply the example to add and write the sums in simplest form. Students add sixteen...
Curated OER
Dinosaur Math
Students read How to Train with a T.Rex and Win 8 Gold Medals and solve math problems. In this dinosaur math lesson, students write a math story to go with the dinosaur story. Students discuss the needed strategies. Students...
Curated OER
Recalling Multiplication and Division Facts
A fabulous presentation on multiplication and division facts. In it, learners work in pairs to solve all sorts of problems, puzzles, brain teasers, and mental math problems. These problems focus on multiplication, division, rounding, and...
Curated OER
Estimate Sums: Reteach
In this estimating sums instructional activity, students review two steps to help them estimate to find sums. Students then round each addend to the nearest ten and use the number line for help. Students estimate the sums and write the...
Curated OER
Math Lesson 14
In this math practice activity, 1st graders practice their math skills of addition by completing the 20 pages of double digit addition equations.
Curated OER
Estimate Sums and Differences
In this sums and differences instructional activity, 6th graders solve 20 different problems that including the estimation of numbers in each one. They estimate the sum or difference found in each problem and write it in the space...
Curated OER
Dividing by Ten Riddle
In this dividing by ten riddle activity, 3rd graders solve ten word problems, all dividing by ten, then use the answers to solve a riddle.
Curated OER
Topic 6.5 - Sum and Product of Roots
In this sum and product of roots worksheet, students solve each of the 9 equations on the page. They then find the sum and product of the roots to check their solution.
Curated OER
Systems of Equations - Week 6
In this systems of equations worksheet, students solve systems of equations simultaneously. They read story problems, write systems of equations. This two-page worksheet contains eight problems.