Category Archives: Pre-Algebra

14 Days left! Pre-Algebra: Chapter 13-1 Square Roots Radicals are the funny looking things over the numbers. For example, the `sqrt(16)=4` or the `sqrt(121)=11`. Perfect squares are numbers like 25, 49, and 64 because when you take the`sqrt(144)`, you get … Continue reading →

15 Days left Pre-Algebra: Progress report work day. Get those missing assignments turned in! Algebra: Benchmark #5 Test Day 2 of 2 of the 200 point benchmark. Make sure you double check your work!

16 Days left! Pre-Algebra: Chapter 12 Test today Algebra: Benchmark #5 Today and tomorrow! 

17 Days left! Pre-Algebra: Chapter 12 Review Try the Chapter 12 Form 1a version of the test for a review of the material in Chapter 12. Make sure you know how to do all the problems. Surface Area and Volume … Continue reading →

18 Days left! Pre-Algebra: Chapter 12-8 Pyramid and Cone Volume Just like the we did for cylinders and rectilinear prisms, we calculate the surface area of the base and multiply it by the height (or altitude). BUT, if we did … Continue reading →

19 Days left! Pre-Algebra: Chapter 12-7 Volume of Prisms and Cylinders Its easy to do the volumes of prisms, find the area of the base and then multiply that by the height of the prism. For a rectangular prism, find … Continue reading →

20 Days left! Pre-Algebra: Chapter 12-6 Surface Area of Pyramids and Cones You know how to the do the surface area of pyramids. First, do the area of the base, it can be a square, triangle or even a hexagon … Continue reading →

21 Days left! Pre-Algebra: Chapter 12-5 Surface Area: Prisms and Cylinders Prisms, be they rectilinear (rectangular) or triangular (triangles) have sides, called “faces” and points, called “vertices” and “edges”. You can figure out the “SURFACE AREA” of a prism by … Continue reading →

Pre-Algebra: Chapter 12-3 Geometric Probability Just like we did in Chapter 9 with simple probability, we can do the same thing with geometric probability. With geometric probability, we are usually talking about circle, bulls-eyes, squares or other geometric figures. Remember, … Continue reading →

Pre-Algebra: Chapter 12-2 Area of Circles The area of a circle is `A=pir^2`, where `pi`=3.14 and r is the radius of the circle. Remember, the relationship between the radius and the diameter, `2r=d`. Remember too, that the circumference C of … Continue reading →