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HS
Nature Study
Math
Grades PreK–6
Secular
Individual courses and unit studies sold separately
Harbor and Sprout
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See if it fits your kids
Day-to-day
Mostly parent-led
Structure
Flexible
Lesson prep
Some prep
Writing load
Light writing
If you fall behind
Forgiving
Best for
✓
Secular nature-loving families
✓
Hands-on, sensory learners
Not ideal for
—
Families wanting a single all-in-one box
Strengths
✓
Nature-based, tactile math, language arts, and unit studies
✓
Secular, immersive, and beautifully illustrated
Watch-outs
!
Eclectic pieces rather than one complete graded core
At a glance
Grade level
Grades PreK–6
Subjects
Nature Study, Math
Price
Individual courses and unit studies sold separately
Teaching style
hands-on, visual, reading-heavy
Approach
Secular
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