How to Calculate Elapsed Time

Home Math Resources Skills Measurement Calculating Elapsed Time How to Calculate Elapsed Time Elapsed time and time duration formula, techniques, and practice Author Jill Padfield Published: Oct 2024 Key takeaways • Elapsed time is the time that exists between the start and end of an event • Calculating elapsed time is one of the most […]

What is Capacity?

Home Math Resources Skills Measurement Capacity What is Capacity? A thorough explanation of how to measure capacity using both the metric and customary systems of measurement, with helpful conversion charts and practice questions Author Tess Loucka Published: Oct 2024 Key takeaways • The most used system of capacity measurement in the world is the metric […]

What Does AM and PM stand for?

Home Math Resources Skills Measurement AM & PM What Does AM and PM stand for? Easy definitions for A.M. and P.M. and the story behind how we tell time today Author Tess Loucka Published: March 2025 Key takeaways • AM stands for ante meridiem and PM stands for post meridiem • AM and PM both […]

What Are Vertices?

Home Math Resources Skills Geometry Vertices What Are Vertices? Watch it all come together as you master vertices! Author Jill Padfield Published: Oct 2024 Key takeaways A vertex is the point where two lines intersect – We’ll see them a lot in geometric shapes, such as cubes or pyramids. There can be more than one […]

What is Volume in Math?

Home Math Resources Skills Geometry Volume What is Volume in Math? Calculating the volume of objects has many real-world applications. Students use specific formulas to calculate the volume of three dimensional shapes. Author Katie Wickliff Published: Oct 2024 Key takeaways • Perpendicular lines are two straight lines that meet or intersect at 90°. • The […]

What is a Prime Number?

Home Math Resources Skills Numbers Prime Numbers What Are Prime Numbers? Learn the definition of prime numbers, how we use them in math and see a list of prime numbers up to 100. Author Tess Loucka Published: November 2024 Key takeaways • A prime number is any positive number that can only be divided by […]

What are Perpendicular Lines?

Home Math Resources Skills Geometry Perpendicular Lines What are Perpendicular Lines? In this guide, learn all about perpendicular lines and how to identify them! Author Katie Wickliff Published: Oct 2024 Key takeaways • Perpendicular lines are two straight lines that meet or intersect at 90°. • The opposite of perpendicular lines are parallel lines. Unlike […]

What is Perimeter in Math?

Home Math Resources Skills Geometry Perimeter What is Perimeter in Math? Perimeter is the measurement of length around a shape. You can think of it as a boundary or fence around your “geometric” yard. Author Michelle Griczika Published: Oct 2024 Key takeaways • Perimeter is the whole distance around a shape. • Different shapes have […]

What are parallel lines?

Home Math Resources Skills Geometry Parallel Lines What are parallel lines? Parallel lines are an important concept in geometry that we see everywhere we look in everyday life. Learn the definition of parallel lines and how we use them in math. Author Michelle Griczika Published: Oct 2024 Key takeaways • Parallel lines never intersect and […]

Measuring Angles

Home Math Resources Skills Geometry Measuring Angles Measuring Angles Get it right with your right angles in this easy measurement guide! Author Jill Padfield Published: Oct 2024 Key takeaways We measure angles in degrees – Just like you’d use inches or centimeters to measure length on a ruler, we use degrees when we measure angles. […]