If your school runs Moodle, that is where your readings, lecture slides, practice quizzes, and study guides live, and it is a good place to try studying with AI. The main way you will use Lensia, a Chrome extension, is its sidebar chat: a panel that opens next to your Moodle page and stays there while you work, holding a full back-and-forth instead of a single answer. When one thing on the page stops you and you just want it explained fast, there is also a floating panel you pull up with Ctrl+Shift+X. This guide covers both, with the sidebar doing the heavy lifting. Install Lensia free and open it the next time you sit down to review.
A quick word on academic integrity. Lensia is a study aid. Use it to learn the material, generate practice problems, and check your work after you attempt it yourself. Using it during a graded assessment where AI is restricted is academic dishonesty. Everything below is about preparing and reviewing, not live graded quizzes.
Start in the sidebar chat
Open the sidebar from your Chrome toolbar. A chat opens in Chrome's side panel, docked next to your Moodle course so the reading and the conversation stay side by side. It is on every plan.
The sidebar is the main surface because Moodle studying is rarely one question. You paste a paragraph from a lecture slide and ask for it in plainer terms, then ask "give me three practice questions on this," then "now a harder one." Because the chat keeps conversation history, you can scroll back to last week's thread the night before an exam, and bookmark the explanations you know you will want again. A model picker at the top lets you start a quick recall question on a fast model and switch to a heavier one mid-thread when a statistics concept needs more careful reasoning.
What paid tiers add inside the sidebar
- Web search and fetch URL let the AI pull a definition or formula from a live source while it explains, or read a specific link you paste, handy when a Moodle reading references something your notes skip.
- Agent mode on Pro chains several steps inside the sidebar: read the notes open in your tab, take a fresh screenshot, look something up, then walk you through it.
To see how the sidebar and the panel differ, read how Lensia works.
The floating panel: quick answers without leaving the page
Not every question is worth opening a chat for. When you are reading a Moodle page and one line trips you up, press Ctrl+Shift+X, drag a box around it, and a step-by-step explanation floats up on top of the page in a few seconds. Your slide, your notes, and the answer all stay in one view.
- Ask Mode is a switch on that same panel, on every plan including Free. Flip it on and instead of capturing, you type your own question and can attach up to three images from your screen. Good for a topic with two diagrams to compare, or when the wording matters more than a screenshot.
- Quick Capture (
Ctrl+Shift+F) reuses your last selection box, so a review sheet of similar-looking problems takes one keypress each. Ctrl+Shift+Ehides the panel completely and brings it back.
Turn your Moodle material into practice
Re-reading feels like studying but barely builds recall. Testing yourself does. The loop:
- Open a chapter, lecture slide, or study guide in your Moodle course.
- Paste a section into the sidebar (or capture it with the panel) and ask Lensia to generate practice questions on it.
- Close the chat and answer them yourself, cold.
- Reopen it to check your answers and get worked explanations for anything you missed.
By the time a real assessment arrives, the goal is that you can solve those problems with nothing on screen.
Check your work after you attempt it
When you finish a practice problem on your own, capture both the problem and your answer, or paste them into the sidebar, and ask where you went wrong. You get a walkthrough that points at the exact step you missed, which teaches far more than just seeing the right answer.
Study tips by question type
- Multiple choice: ask *why* each option is right or wrong, not just which one wins. Moodle instructors often pull from a question bank where the same idea reappears reworded, so the reasoning is what carries over.
- Math and calculations: include every given value and formula, and turn on the reasoning toggle so the AI shows each step instead of just a result. That is what makes multi-step derivations stick.
- Short answer and fill-in-the-blank: confirm a fact quickly, then ask the sidebar how it connects to the rest of the unit.
- True or false: the one-sentence justification is the useful part, because it hands you the rule behind the verdict.
- Science and diagram questions: when a chart or diagram is involved, Lensia reads the image directly and can walk you through how to interpret the figure.
Free, Basic, or Pro: which plan do you need?
| Feature | Free | Basic | Pro |
|---|---|---|---|
| Sidebar chat with history and bookmarks | ✓ | ✓ | ✓ |
Capture and floating explanation (Ctrl+Shift+X) | ✓ | ✓ | ✓ |
Quick Capture (Ctrl+Shift+F) and Ask Mode | ✓ | ✓ | ✓ |
| Quick + Standard models, Lensia Max auto-router | ✓ | ✓ | ✓ |
| Usage allowance | starter | ~10× Free | highest |
| Reasoning toggle (on/off) | — | ✓ | ✓ |
| Advanced models (GPT-5.4, GPT-5.5, Gemini 3.1 Pro, Claude Sonnet 5, Claude Opus 4.8) | — | ✓ | ✓ |
| Web search + fetch URL in the sidebar | — | ✓ | ✓ |
| Custom Instructions | — | ✓ | ✓ |
| Agent mode (multi-step inside the sidebar) | — | — | ✓ |
| Auto-Solve Mode (Vocabulary.com only) | — | — | ✓ |
The core study flow is free: open the sidebar, generate practice questions, check your work, and use the floating panel for quick captures. Quick and Standard models are both included. For multiple-choice review in history, psychology, and most general courses, Free is plenty.
If your Moodle courses lean into harder STEM material:
- Basic adds the reasoning toggle, web search, fetch URL, custom instructions, and Advanced models, with about ten times the Free budget.
- Pro adds agent mode inside the sidebar and Auto-Solve on Vocabulary.com, on the highest budget.
Leave the model on Lensia Max and it picks a fitting Quick or Standard model per question and takes 15 percent off the cost. Lensia uses Google sign-in only. For a fuller comparison across subjects, read the best AI tool for college students guide and the AI study helper guide.
Getting started
Lensia works in Chrome on desktop only, with Google sign-in.
- Download and install Lensia.
- Create your free account with Google. No payment to start.
- Open your Moodle course, open the sidebar, and ask it to explain a concept or build you practice questions.
- Use
Ctrl+Shift+Xon the next thing that trips you up while reading.
For more on studying across course sites, read studying with AI for online coursework. Install Lensia free today and put it to work at your next review session.