Teach Engineering
About Accuracy and Approximation
How accurate are robots? Groups draw lines by moving robots backwards and forwards by one rotation of the wheels. Using the appropriate formula, they determine the percent error in the length of the lines in relation to the calculated...
EngageNY
Estimating Digits in a Quotient
Boiling down any division problem to a one-digit divisor problem sure makes estimation easy. The lesson shows how to estimate division problems by using place value understanding and basic arithmetic facts to simplify the division. Some...
Charleston School District
Comparing and Ordering Irrational Numbers on a Number Line
Estimating the value of numbers is much harder than it sounds! Scholars compare and order the value of numbers presented in different forms including fractions, decimals, roots, integers, and pi. This builds on the previous lessons in...
Curated OER
Ratios, Rates, Percent and Nutrition
Examine food labels to determine percentage of fat and sugar to total calories with middle schoolers. Daily nutritional guidelines are discussed and learners will decide how well their foods fit into a healthy diet. In the provided...
Illustrative Mathematics
Calculating the square root of 2
Does a calculator give you the exact value of the square root of 2? Here, learners must decide if 1.414236 is equal to the square root of 2. They must also explain why the square root of 2 could never be equal to a terminating decimal....
Curated OER
Using a Number Line: 5th Grade Math
Working in groups, the class will use what they know about whole number operations to solve a real-world problem involving a number line. They will focus on using the number line to correctly label the placement of whole numbers,...
EngageNY
Comparing Integers and Other Rational Numbers
The ninth installment of a 21-part module has pupils compare integers and rational numbers in decimal and fraction form. They match stories to number lines and compare values in the stories.
Curated OER
Math Reference Sheet
Your young learners will enjoy having quick access to this reference sheet that includes a multiplication chart, formulas for perimeter, area, and volume, place value chart, fraction chart, basic types of polygons, triangles and lines...
Curated OER
Deci-order
Fourth graders play a game to practice their decimal number ordering skills. They use their knowledge of the number system to create the biggest decimal number. Students are dealt 3 cards each with the reminaing cards placed face down...
Curated OER
Just One!
Pupils play a trading game using Base 10 blocks that incorporates decimal place value. Then they each receive a paper with a decimal number on it and must arrange themselves in a line from least to greatest.
Curated OER
How Many Thousandths Are in Your Box?
Students identify the different place values. For this algebra lesson, students represent decimal place values with manipulatives. They identify the correct place value using commas and mathematical reasoning.
Curated OER
And the Number Is (Second Grade)
Second graders create Mystery Numbers. They give the class clues about the name, value, and multiples of the digits which make up the number.
Curated OER
Decimal Subtraction
For this decimal subtraction worksheet, students solve 20 different problems related to decimals and subtraction. They subtract each of the given decimals to the thousandths place and write their answers. Students also bring down the...
Curated OER
Multiply Decimals 2
In this finding the products worksheet, students multiply tenths, hundredths, and thousandths with and without whole numbers. Students solve 24 problems.
Curated OER
Using Decimal Benchmarks
Students demonstrate some common operations done while using fractions based upon mathematical standards. They are also changing common fractions to decimals with estimation skills and the use of a calculator.
Curated OER
Put Your Hands on the Values-Math Manipulatives
Fifth graders visit Web sites on the World Wide Web for interactive practice in recognizing place value for numbers. They work in teams of two to practice identifying place values of whole number and decimals by creating place value cards.
Curated OER
Decimals: Collaborative Lesson
Students explore mathematics by participating in a group activity. In this number value lesson plan, students identify the uses for decimals and how to best estimate whole numbers based on decimals and fractions. Students collaborate...
Curated OER
Decimals Multiplying
In this math activity, students multiply the values that are using decimals. They pay special attention to the place values for the decimals.
Curated OER
Ordering Fractions and Decimals
Students place fractions and decimals with unlike values in correct numerical order.
Curated OER
Money Place Value Chart
In this money activity, learners complete a chart showing the value of money and how the amount of money could be written in words. Five examples are given. Fifteen more numbers can be added. Money amounts are given in pounds.
Curated OER
Subtraction Decimals
In this math worksheet, students subtract the decimals while taking special care to keep the decimals in the correct place value. The answers are also available.
Curated OER
Decimals: Dividing-1
In this decimals worksheet, learners practice problem solving twenty four division equations involving decimals. Students show each step of their work.
Curated OER
Decimal Addition Level 1
In this math worksheet, students use the skill of addition with decimals to solve the 12 problems. The key is to line the decimals up correctly.
Curated OER
Addition-Decimals
In this addition worksheet, students solve twenty equations associated with addition and decimals. Students show each step of their work as they solve each equation.
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