# Math Online Games

## Measuring Angles – Interactive Protractor (4th Grade)

Measuring Angles – Interactive Protractor (4th grade) Measuring Angles – Interactive protractor where you measure the angle and type in its measurement. It will check your answer immediately. Geometric measurement: understand concepts of angle and measure angles. CCSS.Math.Content.4.MD.C.6 – Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.

More...## Teaching 4.MD.A.1 – Know Relative Sizes of Measurement Units Including km, m, cm; kg, g; lb, oz.; l, ml; hr, min, sec.

Measurement & Data – 4th Grade Solve problems involving measurement and conversion of measurements. CCSS.Math.Content.4.MD.A.1 Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz.; l, ml; hr, min, sec. Within a single system of measurement, express measurements in a larger unit in terms of a…

More...## Teaching 4.NF.C.7 – Compare Two Decimals to Hundredths by Reasoning about their Size

Compare Two Decimals to Hundredths Number & Operations – Fractions – 4th Grade Understand decimal notation for fractions, and compare decimal fractions. CCSS.Math.Content.4.NF.C.7 Compare two decimals to hundredths by reasoning about their size. Recognize that comparisons are valid only when the two decimals refer to the same whole. Record the results of comparisons with the…

More...## Teaching 4.NF.B.4 .a.b.c – Understand a Fraction a/b as a Multiple of 1/b – Multiply Fraction by a Whole Number

Multiplying Fractions Number & Operations – Fractions – 4th Grade Build fractions from unit fractions. CCSS.Math.Content.4.NF.B.4 Apply and extend previous understandings of multiplication to multiply a fraction by a whole number. CCSS.Math.Content.4.NF.B.4.a Understand a fraction a/b as a multiple of 1/b. For example, use a visual fraction model to represent 5/4 as the product 5…

More...## Teaching 4.NF.B.3.d – Solve Word Problems Involving Addition and Subtraction of Fractions

Number & Operations – Fractions – 4th Grade Build fractions from unit fractions. CCSS.Math.Content.4.NF.B.3.d Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem. Teacher Notes Teaching students the strategies to solve word problems is…

More...## Teaching 4.NF.B.3.c – Add and Subtract Mixed Numbers with Like Denominators

Number & Operations – Fractions – 4th Grade Build fractions from unit fractions. CCSS.Math.Content.4.NF.B.3.c Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction. Teacher Notes Knowing how do you decompose an improper fraction…

More...## Teaching 4.NF.A.2 – Compare Two Fractions with Different Numerators and Different Denominators

Number & Operations – Fractions – 4th Grade Extend understanding of fraction equivalence and ordering. CCSS.Math.Content.4.NF.A.2 Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2. Recognize that comparisons are valid only when the two fractions refer to the…

More...## Teaching 4.NBT.B.6 – Find Whole-Number Quotients & Remainders with up to Four-Digit Dividends & One-Digit Divisors

Number & Operations in Base Ten – 4th Grade Use place value understanding and properties of operations to perform multi-digit arithmetic. CCSS.Math.Content.4.NBT.B.6 Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain…

More...## Teaching 4.NBT.B.4 – Fluently Add and Subtract Multi-Digit Whole Numbers Using the Standard Algorithm

Number & Operations in Base Ten – 4th Grade Use place value understanding and properties of operations to perform multi-digit arithmetic. CCSS.Math.Content.4.NBT.B.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm Teacher Notes The teacher needs to continue talk about and use place value in describing and justifying the processes students use to…

More...## Teaching 4.NBT.A.3 – Use Place Value to Round Multi-Digit Whole Numbers

Number & Operations in Base Ten – 4th Grade Generalize place value understanding for multi-digit whole numbers. CCSS.Math.Content.4.NBT.A.3 Use place value understanding to round multi-digit whole numbers to any place. Teacher Notes The teacher needs to understand the role place value has in understanding whole numbers. Understanding place value and the base ten number system…

More...## Teaching 4.OA.A.3 – Solve Multi-Step Word Problems

Operations & Algebraic Thinking – 4th Grade Use the four operations with whole numbers to solve problems. CCSS.Math.Content.4.OA.A.3 Solve multi-step word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. …

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