Lesson Sample: Area of a Circle

We are currently developing the online version of our math curriculum. Here is a sample lesson: Finding the area of a circle A circle is a collection of points a certain distance (its radius) from another point, its center. The area of the circle is all of the space inside of it. To find the area: Take the radius (r) of a circle (the distance from the circle’s center to any point on the circle itself) Square it Multiply by π (the Greek letter pi, pronounced “pie,” is an irrational number that’s a bit more than 3: round pi to… Learn more

Lesson: Negative and Positive Numbers (Introduction)

Physical Oceanographer Emmanuel Boss enjoys spending time at sea level (elevation 0) and his work takes him into the ocean. To understand how he does that, we need to understand: Integers in Real-World Contexts — 5 and + 5 look similar, but they are very different numbers. They are opposites and the difference between them is 10! +5 is the number 5 you have worked with since learning to count. It’s 5 units above zero (0). Negative five (- 5) is five units below zero.   Positive and negative numbers can tell you how much money you have or you owe. If… Learn more

Teacher Resources for Negative and Positive Numbers (Introduction)

Grade level designed for: 6 Common Core Standards covered in Module: CCSS.MATH.CONTENT.6.NS.C.5 / C.6 — including 6.A, 6.B 6.C / C.7 – including 7.A, 7.B, 7.C, 7.D / C.8 STEM Professional Featured: Physical Oceanographer Emmanuel Boss enjoys spending time at sea level (elevation 0) and his work takes him into the ocean. Additional STEMps Included: Civil Engineer Tysheina Washington Earth Systems Scientist Charles Zender Software Engineer Malik Coates Guiding Questions What are negative numbers? What are positive numbers? How can we use negative and positive numbers to describe money, locations on Earth’s surface, elevation, and temperature? How do we find negative… Learn more

Orienting Students for Math

John Troutman McCrann, a high school math teacher, NBCT, and MfA Master Teacher Fellow in New York City, writes a column for Education Week about “his quest to integrate inquiry- and performance-based learning into his instruction, and how these concepts might inform education policy.” He is also a curriculum developer for Math4Science’s Explore Math curriculum and math and science teacher at Harvest Collegiate, one of M4S@School’s partner schools.  His latest column is entitled “Orienting Students for Math” and he discusses leading a group of teachers in a two day mathematical orientation for new 9th grade students. One of their objectives was to… Learn more

Nuclear Physicist

Most of the mass — most of the “stuff” — in the visible universe is made of tiny particles called quarks and gluons. We don’t yet fully understand these particles, found in the nucleus of an atom. Nuclear physicists explore their properties, which give us clues about the history of the universe and the Big Bang and also the movement and interactions of everything around us. Nuclear Physicist Renee Fatemi studies the spin of protons and the particles within them. Her work helps us understand the properties of ordinary matter and the fundamental particles within it.

Historian of Mathematics

When did human beings first begin using numbers? Where and when did the number “zero” emerge? Who first came up with the idea of doing algebra? Geometry? Calculus? What events and which other discoveries inspired these ideas? And how did they shape the world we live in? People who study the history of mathematics explore just that: the history of math and the different ways it has developed in different places.  Historian of Mathematics Amir Alexander finds “the interconnections between mathematics and the broader world of culture, religion, art, and politics” fascinating.