Curated OER
The Great Cover Up!
Students use non-standard measurement tools such as body parts, beans and counters to find the area of shapes drawn on the floor. They continue to determine the area of other objects in the classroom.
Curated OER
The Difference Bar 2
Pupils use Internet software, The Difference Bar, to work out the difference between two numbers by breaking numbers into parts. Students use mental strategies to work out the difference between any 2 two-digit numbers. Pupils describe...
Curated OER
Take Away Bar 2
Young scholars use an Internet tool, The Take-Away Bar" to solve subtraction problems. They use mental strategies to subtract a two-digit number from a larger two-digit number. Students write and solve subtraction problems. They...
Curated OER
Capacity Lotto
In this mathematical worksheet, students convert fifteen metric units of capacity and multiply and divide whole numbers by 10, 100 and 1000.
Curated OER
Environmental Graphing
Young scholars experiment with graphing. In this graphing introduction lesson plan, students complete four activities: 1) a bar graph based on class birthdays 2) an estimation graph of the raisins in raisin bread 3) another estimation...
Curated OER
Number Line Math
Second graders use a number line to practice subtraction. For this subtraction lesson, 2nd graders use a number line to count backwards. Students participate in mad math activities and solve problems.
CK-12 Foundation
Ck 12: Inequalities With Addition and Subtraction of Fractions
[Free Registration/Login may be required to access all resource tools.] CK12: Inequalities with Addition and Subtraction of Fractions
CK-12 Foundation
Ck 12: Arithmetic: Product Estimation With Mixed Numbers/fractions
[Free Registration/Login may be required to access all resource tools.] Estimate products and quotients of fractions and mixed numbers.
CK-12 Foundation
Ck 12: Arithmetic: Product With Whole Numbers and Fractions
[Free Registration/Login may be required to access all resource tools.] Estimate products of whole numbers multiplied by fractions.
CK-12 Foundation
Ck 12: Arithmetic: Product Estimation With Mixed Numbers/fractions
[Free Registration/Login may be required to access all resource tools.] Estimate products of fractions and mixed numbers using benchmarks.
PBS
Pbs: Modeling Fraction Division Using Arrays
This video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to determine the width of a rectangular platypus burrow based on its length and area. In the accompanying...
Khan Academy
Khan Academy: Add and Subtract Fractions Word Problems
Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Khan Academy
Khan Academy: Add and Subtract Fractions: Word Problems
In this exercise, students practice adding and subtracting fractions with unlike denominators word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
CK-12 Foundation
Ck 12: Arithmetic: Quotient Estimation With Mixed Numbers/fractions
[Free Registration/Login may be required to access all resource tools.] In this lesson students estimate quotients of fractions and mixed numbers using benchmarks and rounding. Students examine guided notes, review guided practice, watch...
CK-12 Foundation
Ck 12: Arithmetic: Estimation of Sums of Mixed Numbers and Fractions
[Free Registration/Login may be required to access all resource tools.] Estimate sums of fractions and mixed numbers
CK-12 Foundation
Ck 12: Arithmetic: Estimation of Sums of Mixed Numbers and Fractions
[Free Registration/Login may be required to access all resource tools.] Estimate sums and differences of fractions and mixed numbers
Calculator Soup
Calculator Soup: Estimating Sums and Differences of Fractions Calculator
Estimate sums and differences for positive proper fractions, n/d (numerator/denominator). Use rounding to estimate answers when adding or subtracting proper fractions.
CK-12 Foundation
Ck 12: Arithmetic: Fraction Rounding to the Nearest Half
[Free Registration/Login may be required to access all resource tools.] Round given fractions to the nearest half.
CK-12 Foundation
Ck 12: Arithmetic: Fraction Ordering With Lowest Common Denominators
[Free Registration/Login may be required to access all resource tools.] Order fractions from least to greatest and greatest to least using lowest common denominators.
Mangahigh
Mangahigh: Ice, Ice, Maybe: Fast Estimation With Basic Number Calculations
Practice your arithmetic skills as you estimate the answer to questions involving addition, subtraction, multiplication, and division. Includes whole numbers, fractions, and percents. As you answer questions, you guide penguins across an...
CK-12 Foundation
Ck 12: Arithmetic: Mixed Number and Fraction Estimation
[Free Registration/Login may be required to access all resource tools.] Round fractions and mixed numbers in order to estimate sums and differences.
Texas Instruments
Texas Instruments: Estimating With Rational Numbers
In this activity, students will round fractions and mixed numbers, and then use their rounding skills to estimate sums, differences, products, and quotients.
CK-12 Foundation
Ck 12: Arithmetic: Estimation of Whole Number
[Free Registration/Login may be required to access all resource tools.] Round whole numbers in order to estimate sums and differences.
CK-12 Foundation
Ck 12: Arithmetic: Mixed Number and Fraction Estimation
[Free Registration/Login may be required to access all resource tools.] Approximate fractions and mixed numbers by using common benchmarks