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Lesson Plan List for: Number and Operations

Change grade range

Resource	Grade Level	Media Type
Addition of Decimal Numbers and a Common Error Students practice carefully lining up decimal places while calculating sums of decimals that total more than one.	4-7	Lesson Plan
Basketball as a Context for Percentages Students learn to associate simple fractions (25%, 50%, 75% as well as 20% and multiples) of wholes with equivalent percentages in the context of basketball scores and stadium capacity.	5-8	Lesson Plan
Counting and Place Value Students explore counting through the concept of place value in our base-10 numeration system. They practice grouping in groups of ten and groups of ten tens.	2-5	Lesson Plan
Counting into the Ten-thousands Students are introduced to place value into the 10,000s through the use of an abacus. They practice writing and recognizing large numbers.	3-6	Lesson Plan
Creating Equal Shares Students practice fractions by sharing certain numbers of objects among different numbers of people. They begin with unit fractions and move to sharing multiple objects among multiple people, in which a < b, and to produce fractions less than one.	3-6	Lesson Plan
Equivalent Fractions as a Means to Compare Students learn to create equivalent fractions between fifths and tenths (and then some other denominations) as a means to compare fractions of like denominators.	3-6	Lesson Plan
Estimating Profit from a Job Students learn about estimation and rounding and practice rounding with decimal points.	5-8	Lesson Plan
Estimation Students practice their estimation skills by estimating time and numbers of objects in situations in which counting is not feasible or necessary.	3-6	Lesson Plan
Exploring Number Patterns to Discover Common Factors Students explore different repeating patterns to predict when two or more events will occur at the same time. They are encouraged to create patterns and draw conclusions.	3-6	Lesson Plan
Exponential Growth Introduced Harry and his friend make a wager on a game of chess.	5-8	Lesson Plan
Factors, Arrays and Commutativity Students look at different arrangements of desks, discuss the number of factor pairs and relate this to the commutative property of multiplication. They learn why they must try factors up to the square root of a number.	5-8	Lesson Plan
Filmmaking on a Budget Students practice column addition in relation to budgets and are asked to create budgets that meet particular totals.	3-5	Lesson Plan
Gears and Proportions Students learn about proportions and ratios through learning about the gears on a bike.	5-8	Lesson Plan
Improper to Proper Fraction Conversions Students study improper and proper fractions and learn to convert improper fractions to mixed numbers and vice versa.	4-7	Lesson Plan
Introducing Decimals and Simple Decimal Addition Students are asked to recognize the equivalence of fractional tenths and decimals and to do simple decimal addition to find lengths both shorter and longer than 1.	3-6	Lesson Plan
Introducing Non-Unit Fractions and Equivalence Students interpret fractions in which the denominator describes the number of equal parts and the numerator describes how many of those parts one has. They are also introduced to naming equivalent fractions by dividing a circle.	3-5	Lesson Plan
Introduction to Comparing Fractions by Using Percents Students are introduced to percents as a way to compare fractions with unlike denominators.	4-7	Lesson Plan
Introduction to Negative Numbers Students are introduced to the concept of negative numbers through simple equations and the use of a number line that is extended beyond zero in the negative (left) direction.	4-8	Lesson Plan
Inverses as a Form of Undoing Students learn about inverse operations and how to write the inverse of a sequence of operations. They practice by solving two-step equations and checking their solutions.	5-8	Lesson Plan
Learning to Distinguish Numerators and Denominators Students learn to recognize representations of fractions as well as identify numerators and denominators, understand the relationship between the number of parts into which a whole is divided, and the number of those parts that are present	3-5	Lesson Plan
Locating and Ordering Equivalent Fractions on the Number Line Students find ways to share different-sized items equally between 2 people as well as to find equivalent fractions on a number line and to order those fractions by size.	3-6	Lesson Plan
Measuring Object Length on a Number Line Students learn to measure from the zero mark and are taught to measure objects that are not aligned with the zero mark by creating a number sentence using subtraction.	4-7	Lesson Plan
Multiplication as Combinations Students learn to systematically identify all possible combinations, first among 2 objects with 3 possibilities each and then among 3 objects with 2, 2 and 4 possibilities each.	3-6	Lesson Plan
Multiplication as Replication Students build tables and use patterns as an introduction to multiplication. They are encouraged to use multiplication by 10 or 100 for larger values as the beginnings of commutativity and distribution are introduced.	2-5	Lesson Plan
Multiplication by 10 Students practice multiplying by 10 by adjusting a recipe to be 10 times larger. They examine the results to learn the procedure of adding a 0 to the multiplicand when multiplying by 10. They also practice dividing by 10 in the same manner.	3-6	Lesson Plan
Multiplying Fractions of the Form a/b of c Students study fractions and practice writing arithmetic sentences using multiplication and specific proportions.	5-8	Lesson Plan
Percentage of Populations with Diabetes Students learn about percentages in relation to the study of diabetes. They look at a nutrition label and apply various skills to answering questions about the label.	5-8	Lesson Plan
Planning a Budget Students practice column addition and lining up decimal points in the context of money while they watch a video segment. Assessments provide more practice adding numbers in columns, and students troubleshoot an error in misaligned decimal addition.	3-5	Lesson Plan
Scaling Down, Scaling Up Students learn about scaling an object, first smaller (1/10) and then larger (2x).	4-7	Lesson Plan
Scaling Up a Photograph Students learn about proportions and figure out the dimensions of enlargements of rectangular photographs (and some reductions), based on the percentage of the enlargement.	4-7	Lesson Plan
Sharing As a Model for Division Students use manipulatives to share objects among different sized groups and practice dealing rounds as a division method. They learn to apply the method to problems using numbers and how to write these problems as multiplication and division facts.	3-5	Lesson Plan
Strategies for Dividing Numerically Students practice division and the concept of breaking a total into parts that are smaller and more easily divided.	3-5	Lesson Plan
Summing Integers:Positive and Negative Students add, subtract and compare positive and negative integers.	4-8	Lesson Plan
The Use of Exponents Students are introduced to exponential form and learn to write repeated multiplication using exponents and to evaluate expressions in exponential form.	5-8	Lesson Plan
Using Combinations to Solve a Puzzle Students solve puzzles by eliminating possible solutions using clues. Assessments test whether students can predict the number of combinations needed to solve similar puzzles.	2-5	Lesson Plan
Using Maps and Scales to Get to the Basketball Hall of Fame Students learn about proportions by using map scales to estimate travel distances. They use understandings of ratios to calculate travel time using an estimated speed.	5-8	Lesson Plan
Using Percents to Calculate Tips Students learn to calculate 10% of a number by understanding it as one-tenth of the number. They also learn how to do this by moving the decimal point and how to apply this knowledge to calculating tips.	5-8	Lesson Plan
Using Recipes to Add Fractions and Convert Improper Fractions to Proper Fractions or Mixed Numbers Students practice three ways of doubling fractions (representations, addition and multiplication) as they double a cupcake recipe. They convert between improper fractions and mixed numbers.	4-7	Lesson Plan