Guides
Short, opinionated explanations of the rules behind the tools.
Average Reading Speed by Grade Level (Updated 2026)
Words-per-minute benchmarks from K-12 through college and professional reading, with citations to the underlying research.
Updated May 14, 2026
Semester GPA vs Cumulative GPA: What's the Difference?
Quick explainer on how schools calculate semester and cumulative GPA, plus when each number matters for scholarships and transfer applications.
Updated May 14, 2026
How to Cite an Image in MLA 9
MLA 9 rules for citing images, paintings, photographs, and screenshots. Covers source attribution, in-text references, and AI-generated images.
Updated May 14, 2026
How to Cite a YouTube Video in APA 7
APA 7 rules for citing YouTube videos: uploader-as-author, date format, video brackets, and in-text examples.
Updated May 14, 2026
Harvard vs APA: 7 Differences That Trip Students Up
Both styles use parenthetical author-date citations, but the punctuation, capitalization, and author handling differ in ways professors notice.
Updated May 14, 2026
Chicago Notes-Bibliography vs Author-Date: Which One Do You Use?
The Chicago Manual of Style offers two systems. Plain-English guide to picking the right one for your discipline and switching between them.
Updated May 14, 2026
How to Cite a Journal Article in APA 7
APA 7 reference rules for journal articles: author lists, DOI vs URL, volume and issue numbers, page ranges.
Updated May 14, 2026
How to Cite a Website in MLA 9
Step-by-step MLA 9 rules for citing websites, including no-author cases, no-date cases, and the container model.
Updated May 14, 2026
How to Cite a Book in APA Format (7th Edition)
Step-by-step rules for citing books in APA 7. Single author, multiple authors, edited volumes, edition numbers, ebooks — everything you need with examples.
Updated May 14, 2026
MLA 9 vs MLA 8: What Actually Changed
The MLA Handbook moved from 8th to 9th edition in 2021. Here's a plain-English summary of what changed and what stayed the same.
Updated May 14, 2026
How to Calculate a Weighted GPA (with Worked Examples)
Step-by-step guide to calculating weighted GPA for AP, IB, and honors classes. Includes the math, the common scales, and worked examples.
Updated May 14, 2026
The Pomodoro Technique for Students: a Practical Guide
How to use the Pomodoro Technique to actually finish your readings, problem sets, and essays — backed by the original method and recent attention research.
Updated May 14, 2026