
In this video we learn how to determine if a number is prime. We determine if the numbers 83 and 77 are prime or composite.
The steps for determining if a number is prime are as follows:
1. Test…


In this video we cover how to divide decimals. We divide 26.5 ÷ (0.06) in this example on how to divide decimals. #decimals #dividedecimals #minutemath #algebrahelp #algebra…


In this video we cover how to simplify a complex fraction. We use our prime factorization of the numerator and the denominator to cancel out numbers and simplify this fraction. We also use the…


In this video we identify the place value of a digit. We take the number 63,407,218 and identify the place values of its digits.
#placevalue #digits #minutemath #algebrahelp #algebra #prealgebra…


Welcome to an Introduction to Coordinate Planes with Mr. J! Need help with coordinate planes or important vocabulary? You're in the right place!
Whether you're just starting out, or need…


Welcome to plotting points on a coordinate plane (all 4 quadrants) with Mr. J! Need help with how to plot points on a coordinate plane (plot coordinates)? You're in the right place!
Whether…


Welcome to plotting points on a coordinate plane (quadrant 1) with Mr. J! Need help with how to plot points on a coordinate plane? You're in the right place!
Whether you're just starting…


Mr. Lamarre covers Adding Integers in case you missed it.


Proteins are made of a long chain of amino acids, which has been coded for by DNA. The order of the bases of DNA determines which protein is made, by coding for a specific order of amino acids. This…


This is a beginner lesson for prealgebra or 7th grade math — onestep equations that are solved by multiplying or dividing.
First, I explain how we simplify expressions such as 5x/5 (the
…


In this basic lesson I show several examples of using the
distributive property of multiplication over addition, including an area
model (rectangles). Lastly we even touch on using the distributive…


In this second part we will solve more challenging examples that have
more operations than the ones in part 1. The expressions include
exponents plus other operations. In these examples, divisions…


This is the first part of the lesson on the order of operations. I start out with a minireview of
exponents and then we study the order of operations (PEMDAS rule),
followed by a few solved…


This is a prealgebra math lesson where I show how to write an equation to
match a written sentence (2 example problems). Then we look at
mathematical expressions that match a reallife situation…


This video lesson explains the difference between an
expression and equation, gives examples of both, and shows how to write
expressions from verbal descriptions. In a nutshell, an expression…


