It was the end of February when we were told that schools would close and that we should invent a new way to teach overnight. After two months I’m still struggling. I love technology and I think it has great potential, but most of us made a mistake. We thought that we could continue teaching … Continue reading Boom cards

# Category: maths

# Online teaching

That's it. We are at home; we can't go outside (I live in Italy) unless we have to buy groceries or medicines. School are being closed since the beginning of March, and we don't know when and if will open again. I'm locked at my place and I'm scared, I have to admit. I'm afraid … Continue reading Online teaching

# Valentine’s day – Fractions activity

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

# 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

# Cylinder

A cylinder is a three-dimensional shape with a pair of parallel and congruent circular ends, called bases. Cylinders can be right or oblique. The side of a right cylinder is perpendicular to its circular bases. A cylinder has a single curved side that forms a rectangle when laid out flat. Surface area of a cylinder The area of … Continue reading Cylinder