Free Calculators, Teacher Tools & AI Guides
Practical, free resources for students and educators: calculators that show their working, classroom tools that run in your browser, and AI guides checked against official sources.
Jump to: Free Student Calculators · AI Guides & Comparisons for Teachers · Free Classroom Tools for Teachers
Free Student Calculators
Work out grades, finals and averages in seconds. No sign-up, nothing uploaded.
Grade Calculator
Turn points or questions correct into a percentage and letter grade. See how many questions you can miss and use a custom grading scale.
Free Calculator · Updated Oct 7, 2026GPA Calculator
Weighted and unweighted GPA, cumulative GPA and the GPA you need for a target. Letter or percentage grades, credits, Honors and AP.
Free Calculator · Updated Sep 25, 2026Final Grade Calculator
Find the exact score you need on your final exam, check whether your target is still possible, and compare what-if outcomes.
Free Calculator · Updated Sep 30, 2026Weighted Grade Calculator
Add categories, scores and weights to get your current weighted grade and the average you need on remaining work.
AI Guides & Comparisons for Teachers
Free educator plans, eligibility and side-by-side comparisons, verified from official sources.
9 Best AI Tools for Teachers in 2026
Free plans, limits, student access and privacy for nine leading tools, checked against official provider pages.
Guide · Updated Sep 28, 2026Claude vs ChatGPT for Teachers
Which is better for teachers? Compare free educator access, lesson planning, privacy, district controls and limits side by side.
Guide · Updated Sep 28, 2026ChatGPT for Teachers: Free Access & Sign-Up
Eligibility, educator verification, privacy protections, included tools and district setup for the free U.S. K–12 plan.
Guide · Updated Sep 28, 2026Claude for Teachers: Free Access & Eligibility
Who qualifies, how verification works, what the free educator plan includes and the current offer deadline.
Guide · Updated Sep 28, 2026Free AI Courses for Teachers With Certificates
Seven no-cost AI training options from Google, Microsoft, Canva, Khan Academy and others, with credential type and time needed.
Free Classroom Tools for Teachers
Generate editable lesson plans, worksheets, rubrics and prompts directly in your browser.
AI Prompt Generator for Teachers
Build detailed, reusable prompts for lesson plans, quizzes, rubrics, differentiation and parent emails—ready for ChatGPT, Claude or Gemini.
Free Tool · Updated Sep 2, 2026Lesson Plan Generator
Create a structured, editable lesson with objectives, pacing, activities, differentiation and an exit ticket. No sign-up.
Free Tool · Updated Sep 15, 2026Worksheet Generator
Make reading, vocabulary, matching and math worksheets with separate answer keys. Copy or print.
Free Tool · Updated Sep 8, 2026Rubric Generator
Editable grading rubrics for writing, projects and presentations with 3–5 levels and optional weights.
Free Tool · Updated Sep 22, 2026Exit Ticket Generator
Quick 3-2-1, multiple-choice, short-answer and reflection exit tickets with teacher guidance on a separate page.