How to use the Read-To-Me Feature,
The Slide to Slide Navigation within a Lesson,
The Full Screen Button, & The Table of Contents Controls

Slide LISTEN in English LISTEN in Spanish Introduction full-screen Scroll down to
choose another lesson
Lesson Navigation Arrow

Each lesson is presented from left to right in a sequence of slides.
go to next slide go to previous slide

Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8



Complies with NGSS:

NGSS 3.Inheritance and Variation of Traits: Life Cycles and Traits
3-LS1-1, 3-LS3-1, 3-LS3-2, 3-LS4-2

Core Disciplinary Ideas:
LS1.B: Growth and Development of Organisms
LS3.A: Inheritance of Traits
LS3.B: Variation of Traits
LS4.B: Natural Selection

Biology - Cells to Molecules: DNA and a Four Letter Alphabet
DNA and A Four Letter Alphabet
Replication with a One Sided Ladder — Its Elementary. Chromosome Puzzles.