|Home||Blog||My books!||Newsletter||Worksheets||Lessons||Videos||Online math resources||Reviews||Curriculum guide|
Maria's Math news - a FREE math newsletter for parents and teachers
Latest from my blog
Various worksheets on TONS of math topics you can generate for free!
Basic operations worksheet generator is updated! Make worksheets for whole numbers or integers - all four operations, including add & subtract or multiply & divide - horizontal or vertical - add a border and/or extra workspace, use a variable, and more.
Advice, reviews, and resources to help you choose a math curriculum!
Online math games, tutorials, and activities
Games you can play online, interactive tutorials, fun math websites and more. Arranged by topic/level for ease of use.
Learn how to TEACH concepts or about general concerns in math education.
In-depth reviews of math products
Math help & tutoring
A list of free message boards, math help websites, and online tutoring services.
Fun and games
I have two games on my site, plus links to many.
Game: Choose Math Operation
Word guess game (easy hangman)
Word guess game (difficult)
The ideas in this geometry lesson are taken from the Geometry ebook that I sell at MathMammoth.com. This lesson plan does not contain all the problems the Geometry ebook does.
Parallel and perpendicular lines
Two lines or line segments can either intersect (cross) each other or be parallel.
1. Calculate the other angles inside the parallelogram. Do not measure since the pictures are not exact. What are the principles you can use?
2. a) Draw a parallelogram that has a 50 angle. You can decide the length of the sides of the parallelogram. What else do you need to know to be able to draw the parallelogram?
b) Draw a parallelogram that has a 118 angle.
5. Find one corresponding angle to each of the marked angles and mark
them the same way.
These pictures do have some extra lines there too but remember you need to look for two parallel lines and a line that intersects them both.
[Pictures available in the ebook]
New terms to remember: