### Folder Free eBooks by Bob Albrecht

#### document Mathemagical Meandering

Microsoft Word file. Mathemagical Meandering is a free 41-page booklet that you can download as a PDF file or as a Microsoft Word file. It contains a motley assortment of meanderings by Bob Albrecht and George Firedrake. Several of these ramblings were previously posted on the Oregon Council of Teachers of Mathematics (OCTM) listserv. The booklet includes The Plop Investigation, A Plethora of Snakes, A Note on the Science of NFL Football, Round-Robin Tournament SAT Practice Test Question, Measure the Height of a Tall Object, Win a Bag of Money, Solar-System Necklace, Coconut-Carrying Swallows, Use FOIL to Multiply 2-Digit Numbers, Nine to the Nine to the Nine, Eager Eric Wants to be Shorn, Roll 2D6 Doubles Game, Are All Perfect Numbers Triangular Numbers?, and A Word Game Using a TI-84 to 'Roll' 26-Faced Dice. Hey! This is **free** book. It is AOK if you give snippets or the entire booklet to students, teachers, tutors, parents, grandparents, et al, et al. You can edit and improve the Microsoft Word version. Now here we go meandering again.

#### pdf Algebra: Numbers 01

PDF file. Welcome to *Algebra: Numbers 01*. This 38-page teach-yourself unit is a very slow introduction to natural numbers and whole numbers presented in small bite-sized chunks. Nibble, nibble, gnosh, gnosh, learn a little algebra. It is slow and easy. Topics include natural numbers, whole numbers, odd numbers, even numbers, square numbers, triangular numbers, and a math recreation called mathemagical black hole 123. There are 22 sets of **Your Turn **exercises with answers and a 17-question **self-test **with answers. Algebra: Numbers 01 is available as a PDF file and also as a Microsoft Word file that you can edit. May dragons of algebraic alakazams be with you.

#### document Algebra: Numbers 01

Microsoft Word file. Welcome to *Algebra: Numbers 01*. This 38-page teach-yourself unit is a very slow introduction to natural numbers and whole numbers presented in small bite-sized chunks. Nibble, nibble, gnosh, gnosh, learn a little algebra. It is slow and easy. Topics include natural numbers, whole numbers, odd numbers, even numbers, square numbers, triangular numbers, and a math recreation called mathemagical black hole 123. There are 22 sets of **Your Turn **exercises with answers and a 17-question **self-test **with answers. Algebra: Numbers 01 is available as a PDF file and also as a Microsoft Word file that you can edit. May dragons of algebraic alakazams be with you.

#### pdf Mathemagical Black Holes

*Mathemagical Black Holes*is a free 96-page book that you can download as a PDF file or as a Microsoft Word file. You and your students/tutees can edit the Word file, improve it, enhance it, et cetera, et cetera.

The book includes Mathemagical Black Holes of the Simple Kind, Mathemagical Black Hole 123, Mathemagical Black Holes 99 & 1089, Mathemagical Black Hole 495, Mathemagical Black Hole 6174, Mathemagical Black Hole 153, Mathemagical Square Root Black Hole, and Mathemagical Black Holes of the Cyclic Kind. We think that first-grade students can enjoy some of the simple black holes and Black Hole 123, especially with you coaching them. Black Hole 123 is amazing, and requires only counting and catenating (putting numbers together).

Grab your magic wand, hop on your broom, and explore mathemagical black holes.

#### document Mathemagical Black Holes

*Mathemagical Black Holes*is a free 96-page book that you can download as a PDF file or as a Microsoft Word file. You and your students/tutees can edit the Word file, improve it, enhance it, et cetera, et cetera.

The book includes Mathemagical Black Holes of the Simple Kind, Mathemagical Black Hole 123, Mathemagical Black Holes 99 & 1089, Mathemagical Black Hole 495, Mathemagical Black Hole 6174, Mathemagical Black Hole 153, Mathemagical Square Root Black Hole, and Mathemagical Black Holes of the Cyclic Kind. We think that first-grade students can enjoy some of the simple black holes and Black Hole 123, especially with you coaching them. Black Hole 123 is amazing, and requires only counting and catenating (putting numbers together).

Grab your magic wand, hop on your broom, and explore mathemagical black holes.