National Math + Science Initative
Introduction to Decimals
Three activities make up an introductory instructional activity designed to create a strong foundation in comparing fractions to decimals and exploring and building decimal models. Pupils brainstorm and complete a Venn diagram to show...
EngageNY
Decimal Expansion of Pi
Develop a better understanding of the value of pi. Learners explore the area of a circle using estimation and graph paper. While continuing to estimate the area of the circle using smaller and smaller grids, the number pi emerges.
Curated OER
Decimal Bingo
Practice converting decimals into fractions. They draw a 3x3 grid and write in any nine common fractions with denominator 10 or 100 and with numerators 9 or less. The group listens as the teacher call out decimal numbers within the given...
EngageNY
A Fraction as a Percent
It is all about being equivalent. Class members convert between fractions, decimals, and percents. By using visual models, scholars verify their conversions in the 25th portion of a 29-part series.
Center for Applied Linguistics
Practical Applications of Fractions, Percents, and Decimals
Young architects are prompted to design a playground in assigned groups. Using a 10 x 10 grid. Your fifth graders will apply their knowledge of fractions, percents, and decimals to the real-world task of designing a playground....
Curated OER
Comparing and Ordering Fractions, Mixed Numbers, and Decimals
Young scholars practice comparing and ordering fractions, mixed numbers, and decimals. In this fractions, mixed numbers, and decimals instructional activity, students examine a decimal place value chart compared to a whole number place...
Ohio Department of Education
Fraction and Decimal Equivalency
Mathematicians make representations of fractional parts of a whole and learn that a decimal is another way to represent a fractional part. Understanding is extended by comparing and ordering fractions and decimals on a number line. This...
Curated OER
Bits and Pieces I
Sixth graders examine making smaller parts out of fractions and decimals. For this online interactive fractions, decimals, and percents lesson, 6th graders represent fractions with denominators of ten. Students then represent powers of...
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.
Shodor Education Foundation
Pythagorean Theorem
Most adults remember learning about the Pythagorean theorem, but they don't all remember how to use it. The emphasis here is on developing an intuitive understanding of how and when to use the theorem. Young mathematicians explore...
Curated OER
Fraction and Decimal Garden
Third graders write fractions and decimals using unifix cube models and grid paper. They draw a garden using grid paper and label each section with the correct fraction and decimal to the tenths. This is a clever way to use manipulatives...
Curated OER
Introducing the Concept: Percents
Students explore the math concept of percents. In this percents lesson, students examine visual examples of the relationships among fractions, decimals, and percents. Students also practice solving problems that their instructors model.
EngageNY
Percent and Rates per 100
What percentage of your class understands percents? Pupils learn the meaning of percents based upon rates per 100 in the 24th lesson in a series of 29. They represent percents as fractions, decimals, ratios, and models. The scholars...
Curated OER
Fractions and Measurement
Using a Smart Board, or a plain ol' white board or chalkboard, the teacher pulls up a grid and demonstrates how squares and rectangles can be divided up into equal parts. The class will get their own graph paper to draw shapes and divide...
Curated OER
Fractions and Grids
Third graders utilize a grid to help them think of different names for the same fraction. They practice solving practical problems that require finding fractions of whole numbers and decimal amounts and list several different names for...
Curated OER
Perfect Places!
Second graders study the decimal point and study tenths, hundredths, and thousandths. They explain ways to read and write decimals.
Curated OER
Percentages On A Grid
Fifth graders show percentages on a 10 x 10 grid. For this percentages lesson plan, 5th graders color in the squares to show a percent.
Curated OER
Giving it 100%
Learners build knowledge about the number relationships between decimals and percents as it relates to converting decimals into percents. In this decimal and percent instructional activity, students recognize equivalent forms of...
Curated OER
A Newspaper?
Sixth graders use newspapers to investigate fractions. They work in small groups to categorize articles, measure them with the grid transparency, and calculate the values represented. Afterward, they write a reflective essay on the role...
Curated OER
Relating Fractions, Decimals, and Percents
Fifth graders participate in a lesson that is concerned with the concept of telling the differences between a fraction, decimal, and percent. There is a good example of conversion in the lesson.
Curated OER
Adding and Subtracting Decimals
Students practice adding and subtracting numbers with decimals. In this decimals lesson plan, students use grid paper and money to learn how to add and subtract decimals.
EngageNY
Solving Percent Problems III
What happens when combining percentage discounts? The last lesson in a series of 29 introduces the idea of combining discounts one after another. Pupils wrestle with the claim that to find the total discount, they need to only add...
Curated OER
The Number Line
Eighth graders investigate the order of numbers and how they are located on the number line. They also review the symbols used to compare quantities in order to decipher simple expressions and graph them on the numberline.
Curated OER
How Many Thousandths Are in Your Box?
Students identify the different place values. In this algebra lesson, students represent decimal place values with manipulatives. They identify the correct place value using commas and mathematical reasoning.