Do you need a fun activity for Valentine's day? check: https://www.teacherspayteachers.com/Product/Valentines-day-Fractions-activity-5208570 No prep, ready to print activity for Valentine's day, including colouring activity with equivalent fractions and additions and subtactions. Copyright © 2020 Matemaths All rights reserved by author. Permission to copy for single classroom use only Not for public display. If you are looking … Continue reading Valentine's day – Fractions activity

# Category: 8th grade

# Monomials part 2

Multiplying Monomials When you multiply monomials, you will need to perform two steps: Multiply the coefficients (constants) Multiply the variables, using the famous laws of indices! For example For example Dividing Monomials Let's start by taking a look at a few problems in "expanded form". Once you examine these examples, you'll discover the rule on … Continue reading Monomials part 2

# Monomials part 1

Monomials A monomial is an algebraic expression that consists of only one term. (A term is a numerical or literal expression with its own sign.) For instance, 9x , -4a², and 3mpx³ are all monomials. The number in front of the variable is called the numerical coefficient. In -9xy, -9 is the coefficient. Adding and subtracting monomials To add or subtract monomials, follow … Continue reading Monomials part 1

# Relative numbers (part 2)

Multiplying Positive and Negatives numbers We can only do arithmetic in the usual way. To calculate 5(−2), we have to do 5· 2 = 10 -- and then decide on the sign. Is it +10 or −10? For the answer, we have the following Rule of Signs. Rules of signs Like signs produce a positive … Continue reading Relative numbers (part 2)

# Relative numbers (part 1)

Addition and subtraction We can count forwards: 1, 2, 3, 4, ...and the question is: if you can go in one way, can you go the opposite way? The answer is: negative numbers Now we can go forwards and backwards as far as we want. + is the positive sign - Is the negative sign … Continue reading Relative numbers (part 1)

# Sphere

A sphere is the set of all points, in three-dimensional space, which are equidistant from a point. The radius has one endpoint on the sphere and the other endpoint at the center of that sphere. The diameter of a sphere must contain the center and touch two points of the sphere. The largest circular cross-section in a sphere is a great … Continue reading Sphere

# Cone

A cone is a solid with a circular base and sides that taper up towards a vertex. A cone is generated from rotating a right triangle, around one leg. A cone has a slant height. Surface area Surface area is a two-dimensional measurement that is the total area of all surfaces that bound a solid. The basic unit of … Continue reading Cone