folder Free eBooks by Bob Albrecht

pdf Counting Alakazams 01: Count Objects in Arrays

2069 downloads

PDF file. This 76-page eBook was inspired by Count von Count of Sesame Street. You can download it free as a PDF file or Word file or both. This eBook is intended for teachers of mathematics at all grade levels. It is about counting objects in square and rectangular arrays of tiny squares. The objects to be counted are squares and rectangles. Counting is one of the foundations of mathematics. Counting is fun! 

Chapters: Rectangular and Square Arrays, Count Squares in Square Arrays, Count Squares in Rectangular Arrays, Count Rectangles in Square Arrays, Count Rectangles in Rectangular Arrays, Algebraic Alakazams, and Problems for You to Ponder. 

As your students play through this book, they will encounter many Your Turn activities followed by Answers.Immediate feedback. This is free book. It is AOK for you to give snippets or the entire book to students, teachers, tutors, parents, grandparents, et al, et al. You can easily edit the Microsoft Word version. May dragons of good fortune dance on your keyboard.

document Counting Alakazams 01: Count Objects in Arrays

1226 downloads

Microsoft Word file. This 76-page eBook was inspired by Count von Count of Sesame Street. You can download it free as a PDF file or Word file or both. This eBook is intended for teachers of mathematics at all grade levels. It is about counting objects in square and rectangular arrays of tiny squares. The objects to be counted are squares and rectangles. Counting is one of the foundations of mathematics. Counting is fun!

Chapters: Rectangular and Square Arrays, Count Squares in Square Arrays, Count Squares in Rectangular Arrays, Count Rectangles in Square Arrays, Count Rectangles in Rectangular Arrays, Algebraic Alakazams, and Problems for You to Ponder.

As your students play through this book, they will encounter many Your Turn activities followed by Answers.Immediate feedback. This is free book. It is AOK for you to give snippets or the entire book to students, teachers, tutors, parents, grandparents, et al, et al. You can easily edit the Microsoft Word version. May dragons of good fortune dance on your keyboard.

pdf Mars, Earth, Curiosity 01

1142 downloads

PDF file. Curiosity, NASA's Mars Rover, is roving. This 12-page eBooklet uses images from Solar System Live to show the positions of Mars and Earth (Mercury and Venus too) in their orbits on the day the spacecraft carrying Curiosity to Mars was launched (2011-11-26), the day Curiosity was gently lowered to the surface of Mars (2012-08-06), and the 1st and 15th of every month from September 2012 through September 2013 (26 images of the inner planets' orbits, four per page).

 
 
Hey, there is more: Solar System Live images of the inner planets' orbits at Mars opposition 2012-03-03 and conjunction 2013-04-17. Still more: Data, data, data about Mars and Earth, and a link to the Goddard Space Science Center where you can indulge your curiosity about Curiosity.

document Mars, Earth, Curiosity 01

983 downloads

Microsoft Word file. Curiosity, NASA's Mars Rover, is roving. This 12-page eBooklet uses images from Solar System Live to show the positions of Mars and Earth (Mercury and Venus too) in their orbits on the day the spacecraft carrying Curiosity to Mars was launched (2011-11-26), the day Curiosity was gently lowered to the surface of Mars (2012-08-06), and the 1st and 15th of every month from September 2012 through September 2013 (26 images of the inner planets' orbits, four per page).

 

Hey, there is more: Solar System Live images of the inner planets' orbits at Mars opposition 2012-03-03 and conjunction 2013-04-17. Still more: Data, data, data about Mars and Earth, and a link to the Goddard Space Science Center where you can indulge your curiosity about Curiosity.

pdf Solar System Perambulations

833 downloads

PDF file. Most of our heroes are great mathematicians, physicists, and astronomers. Just for the fun of it, we wrote this 58-page document. It lists 53 mathematicians, physicists, and astronomers, one per page. For each entry, we show date of birth, the positions of the eight planets and dwarf planet Pluto on the birth date, a link to the person's Wikipedia web page, and a table of data about the eight planets, dwarf planets Pluto and Ceres, and Earth's Moon.

We also show you how to use the diagram of the planets' orbits to deduce what planets you can see and about what time of day (night) you can see them. We do this exercise with students we tutor – they like it.

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