Illustrative Mathematics
Which Pictures Represent One Half?
Which image represents one half? Answer the question surrounding four shapes, some of which represent one half and others representing a different amount. The last two questions ask learners to explain why some shapes represent one half...
Virginia Department of Education
Radioactive Decay and Half-Life
Explain the importance of radioactive half-life as your high school biologists demonstrate the concept by performing a series of steps designed to simulate radioactive decay. Pupils use pennies to perform an experiment and gather data....
Curated OER
Doubles and Halves 3
Build mental math skills by teaching learners to double and half three-digit numbers. They start out by doubling one of seven double-digit numbers. Next, they discuss their strategy, and then practice doubling and halving 3-digit...
Curated OER
Fraction Bingo
Bingo! Call out fractions to discover which scholar can accurately identify the fraction shape, and get five in a row first. Halves, thirds, fourths, fifths, sixths, sevenths, eighths, ninths, and tenths are the identifiable fractions on...
Curated OER
Understanding Doubles and Halves
Here is a good presentation for young mathematicians. In it, learners practice the skill of doubling numbers by simply multiplying them by two. At first, the problems are easy. By the end of the PowerPoint, they are asked to double...
Exploratorium
Radioactive Decay Model
Toss 100 pennies (or poker chips or any other two-different-sided objects) and remove all of those displaying tails. Line them up and repeat. The lines of pennies collected get smaller each time, successfully representing half-life.
Curated OER
Making Two-Dimensional Shapes- Matching Worksheet
Now that your learners recognize two-dimensional shapes, can they find what each half of those shapes would look like? There are seven shapes on this worksheet, bisected by a dotted line. Scholars examine these shapes and match them to a...
Curated OER
Making Two-Dimensional Shapes
Which shapes fit? Learners practice visual discrimination using a geometry learning exercise, which has them examine shapes that have been divided in half. They observe a set of shapes to determine which of them would fit into each half...
Curated OER
Making Two-Dimensional Shapes
Find the shapes that fit. Pupils explore visual discrimination in a set of geometry worksheets, which has them examine shapes that have been divided in half. They observe a set of shapes to determine which of them would fit into each...
Curated OER
Half Math
In this beginning fractions activity, students solve four problems in which the same geometric figure is divided in half two different ways.
Curated OER
Harry Potter and the Half-Blood Prince Quiz
In this online interactive reading comprehension worksheet, learners respond to 25 multiple choice questions about Rowling's Harry Potter and the Half-Blood Prince. Students may submit their answers to be scored.
Curated OER
Halves, Thirds, and Sixths
An excellent activity that effectively pulls together the concepts of area, fractions, and equivalent fractions! Using 3x2 rectangular arrays, 3rd graders are introduced to the concept of area in terms of square units. Building on this...
Curated OER
Half Math Quilt
Help your third graders become familiar with equivalent fractions for one-half by having them create a quilt. They will use triangles to create a quilt of equivalent fractions over a period of 6 days. As they create the quilt pieces they...
Franklin College
Tell Time to the Nearest Half-hour and Relate to Events
Youngsters examine how to tell time to the nearest half-hour. They discuss why people wear watches, listen to the book "What Time Is It?" by Sheila Keenan, view examples on a model clock, and complete a worksheet with the teacher.
Curated OER
Linear Inequalities in One and Two Variables: Rays and Half Planes
Define rays and half planes, including the concepts of boundary lines and prerequisite knowledge of coordinate planes. Given linear inequalities in one and two variables, your class will compare the differences. They will also graph...
Curated OER
Equivalent to a Half
How can fractions that look different be considered equivalent? Answer that questions with this informative and easy to follow resource. Fractions are shown in numeric and picture form to reinforce how the are equivalent. The process for...
Curated OER
Which is Closer to 1?
A seemingly simple question that reveals a lot about a student's understanding of fractions. In finding an answer, learners compare fractions with different denominators that are both greater and less than one. No number line is...
Curated OER
Fraction One-Half
In this recognizing the fraction 1/2 worksheet, learners observe blank bars and fill them in showing different ways to make one-half. Students answer eight questions.
Curated OER
Matching Fractions
Focus on halves, thirds, and fourths in these visual fraction activities. Scholars begin by examining a grid with various expressions of the three fractions displayed in the grid squares. They color-code the grid to indicate which...
Curated OER
Digital Clocks
Don't skip over digital clocks when teaching youngsters how to tell time; here are 10 opportunities for them to practice with half-hour increments. For the first five, they write the time below each clock. The format is word form (half...
Curated OER
Symmetry
These symmetrical shapes are only half-completed, so scholars finish them by drawing the other side of the line of symmetry. Because your class won't recognize these abstract shapes, they will get authentic practice with this objective....
Curated OER
Fractions of Shapes
Fraction models are a great way to help scholars visualize this concept, and they focus on thirds with these practice problems. First, there are five shapes each segmented into three even sections. Learners color in one-third of each,...
Curated OER
Symmetry
Where is the line of symmetry? Learners begin by drawing in a line to split three images evenly in half, using an example as reference. Encourage them to think about physically folding the picture to solidify this concept. Next, they do...
Curated OER
Line of Symmetry
Where is the line of symmetry in these shapes? Review this concept using the visual guide at the top of the page, explaining how some shapes have multiples lines. Consider demonstrating this concept with large cut-outs, physically...