Grade 9 science, unit by unit

What is a good Christian homeschool biology curriculum?

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Every course in every grade, for every child in the family. Lessons pause when the free days end unless you choose to subscribe.

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Letters & Devotion teaches Biology: Systems, Structure, and Change as a grade 9 course of twelve units and 75+ hours. It starts at the molecular level and works up to the human body, and it includes a Creation unit. The family chooses at signup whether evolution is taught alongside.

The twelve units

The Chemistry of Life. Cell Structure and Transport. Energy Transformation: Photosynthesis and Respiration. Cell Division and the Cell Cycle. Genetics and Heredity. Creation and the Origin of Life. Evolution by Natural Selection. Ecosystem Structure. Population and Community Ecology. Human Body Systems I and II. A capstone.

One long chain

Every unit leans on the vocabulary and models of the units before it, so chapters are not meant to be taught in any order.

Your choice at signup

You pick Creation or Creation, with evolution taught alongside. Biology 9 teaches evolution alongside the Creation unit only when the family chooses the second option.

A capstone defended out loud

The year ends with a project in which a student picks a real biological case and defends an argument about it out loud.

What this is not

It is one course among many. You decide which to take, which to hold back and how many to do in a day.
It is not a wet lab. Check the course page for what each unit asks you to gather.
It cannot promise any college will accept a homeschool transcript. It prints one of what was taught and mastered, and your family issues it.

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What grade(s)? (so their first lesson is ready)

Before your child starts: what we collect and why

We collect only what it takes to teach your child: the first name and sign-in you choose, their answers and progress, and their chat with Clara (written by Anthropic's AI, read aloud by OpenAI). Nobody trains AI on it or sells it, and you can see or delete it any time. You create your child's account yourself. Ticking the box below is how you, as the parent, give consent.

Read what we collect and why

Your consent is needed before we collect anything from your child, and we collect nothing without it. You create your child's account yourself; they never sign up alone.

What we collect from your child: the first name and sign-in you choose, their answers, time on lessons and progress, and their chat with Clara. Used to run the lessons, build their transcript and show you how they are doing.
Who else handles it: Anthropic writes Clara's replies from the chat, the lesson and your child's first name. OpenAI turns lesson text and Clara's replies into the read-aloud voice. Spoken answers are turned into text on our own server and never sent anywhere. Our email provider sends you reports. Nobody sells your child's data or uses it for anything else.
Your rights: see everything collected from your child, have it deleted, or stop further collection at any time, from your account or by emailing our support address. If you refuse the sharing above, Clara cannot teach, so the service cannot run. Chats are deleted after 30 days.
Safety: if your child writes something suggesting they may be hurt or in danger, we email you and the owner of Letters & Devotion the same day.

Ticking the box below is how you, as the parent, give that consent. Full details, including how long we keep each thing: Privacy Policy (version 2026-10-09).

I am this child's parent or guardian, and I agree to the above.

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Questions parents ask

Does it teach young-earth creation?

The curriculum teaches six-day creation in Creation units inside the science courses, and the family chooses at signup whether evolution is taught alongside.

Does it count toward a high school transcript?

Hours log themselves and a transcript of what was taught and mastered prints in one click. There is also a free transcript maker at /homeschool-transcript that needs no account.

What does it cost?

$29 a month or $290 a year for every child. The first 30 days are free with no card.

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