Curated OER
Too Many Tens
Students practice grouping in different ways by putting numbers up to 1,000 in the correct place value. In this place value lesson plan, students estimate items in a jar and then count them out by grouping them by 10s.
Curated OER
My Decimal Number
Third graders brainstorm different ways to represent decimal fractions. They draw on their knowledge of decimal place value, addition and subtraction of decimals, and writing decimals in words and symbols. Students discuss the meaning...
Curated OER
The Number System
Students explore how to multiply and divide by 10, 100, and 1000. In this computation lesson, students participate in an online activity using the interactive whiteboard. Students generate sums by using dice.
Curated OER
Place Value
Second graders use physical models to represent and demonstrate place value concepts by using base-ten blocks and hundreds charts. They compare numbers to see which number is smaller or larger and put numbers in order from smallest to...
Curated OER
How to Round Numbers
Students exercise rounding numbers to the nearest tens, hundreds, and thousands. In this rounding numbers lesson, students participate in a rounding numbers activity, covering the concept of rounding in both addition and subtraction.
Curated OER
Expanded Form and Place Values
Third graders write a number in their journals that the teacher dictates. They use place value tents to make the number and write it in expanded form. Next, they repeat the process before making numbers that are more or less than the...
Curated OER
Understanding Place Value
Fifth graders study place value. After forming teams, they play a game called, "Who Can Line Up the Number." Students observe numbers in expanded form and place representative digits in the correct order.
Curated OER
Understanding number to 100
Students research equivalent representations of numbers using the base 10 system. In this Base 10 lesson, students examine place value, representations of numbers, and multiples of one, ten, and one-hundred.
Curated OER
How Many Cards Do We Need to Display the Dates of the Month?
Students complete activities to study the concept of place value notation. In this place value lesson, students use cards for the days of the month that only number from 1 to 9. Students find a subtraction pattern to determine the amount...
Curated OER
Block Heads
Students demonstrate whole numbers through one thousand using base ten blocks. They model and describe given numbers using ten blocks.
Curated OER
Decimals: Teaching Decimals in the Hundredths Place
Third graders examine place value in the hundredths place. They use decimals and money for understanding.
Curated OER
Who Needs Numbers?
Young scholars identify whole numbers through the one millions place. In this place value lesson, students read the book The Day Without Math and use place value mats to create numbers to the millions place. Young scholars use base ten...
Alabama Learning Exchange
Are Your Numbers Round?
Elementary schoolers investigate how to round numbers to the nearest tenth. In this number sense lesson, learners view a video clip on the Internet to practice rounding numbers. They use place value charts to help aid in the rounding...
Curated OER
Area Model of Multiplication Using Base 10 Manipulatives
Explore two-digit multiplication with your class as they work in groups to build models of two-digit multiplication using base 10 manipulatives. They construct rectangles replacing standard numbers with equivalent place values using the...
Curated OER
Roll a Decimal
Third graders take turns rolling the die, and selects an appropriate place to put the digit that was rolled in order to create a number with the largest value possible. They compete by trying to roll the highest valued number with the die.
Curated OER
Ordering Greater Numbers
Third graders identify the place value of greater numbers. In this number sense lesson, 3rd graders use a place value chart to properly write a specific number. Students read the number and use the place value map for reinforcement.
Curated OER
Color Me Red If I Am a Ten
Young scholars count aloud by tens. They use a number chart to color in every number that ends in a zero and then participate in choral counting by tens.
Curated OER
Calc-You-Late Magnitudes
First graders are introduced and practice using a calculator. Individually, they enter and complete simple addition and subtraction problems. After the answer is displayed, they identify the place value for ones, tens, and hundreds...
Curated OER
Show Me the Number
Second graders develop the ability to show two-digit numbers using place value attributes in the early additive stage five. They utilize the manipulative's of sticks, rubber bands, counters, small canisters and uni-link cubes to assist...
Curated OER
Two-Digit Subtraction With and Without Regrouping
Second graders subtract two-digit numbers. In this mathematics lesson, 2nd graders subtract both with and without regrouping. Students use manipulatives and place value mats to assist in problem solving.
Curated OER
Rounding Decimals
Fourth graders engage in a lesson that is about the concept of rounding decimals. They review place value and focus it upon the practice of rounding. Students use 10 base decimal grids or models to help make connections with the skill.
Illustrative Mathematics
Adding Tenths and Hundredths
Learning to add fractions with different denominators presents a big hurdle for many young mathematicians. Simplify the process for learners with this series of practice problems involving the friendly fractions tenths and hundredths....
Curated OER
Expanded Form-Hundreds
Students write numbers in expanded form. In this expanded form lesson, students are shown a demonstration on the board about writing numbers in expanded form to the hundreds place. A 20-problem worksheet and answer key are included.
Curated OER
Perfect Places!
Second graders study the decimal point and study tenths, hundredths, and thousandths. They explain ways to read and write decimals.