Why "Looking Over Your Notes" is a Total Waste of Time (Three Study Skills for High School)

Valorie Delp
Mar 30
2 min read

We’ve all seen it: a student sitting at a desk for three hours, highlighter in hand, "reviewing" their history notes. They feel productive. They’ve turned their pages into a neon masterpiece. But two days later, when the test sits in front of them, their mind goes blank.

Girl in a yellow top uses a laptop at a wooden desk with colorful pens. Bright window and soft lighting create a cozy atmosphere.

The Illusion of Competence

At KVD Education, we call this the Illusion of Competence.

When you simply read over your notes, your brain recognizes the information. "Oh yeah, I remember seeing that," it says. But recognizing information is not the same as retrieving it. To get an A, you don't need to know how to read; you need to know how to remember.

Study skills for high school, require active, rather than passive, strategies. Passive studying (re-reading, highlighting, and summarizing) is low-energy for the brain. It’s like watching a workout video and expecting to get muscles. You aren't actually doing the heavy lifting required to build a "memory muscle."

The Solution: The Active Recall Revolution is the Key to Mastering Study Skills in High School

If you want to study less and remember more, you have to switch to active recall. This is the practice of forcing your brain to retrieve information from scratch.

Here are three KVD-approved ways to switch from passive to active:

1. The "Blurting" Method

Close your textbook. Take a blank sheet of paper and "blurt" out everything you can remember about a specific topic (e.g., Mitosis or the Causes of WWII).

The Key: Once you’re done, open the book and use a red pen to fill in what you missed. Those red marks are exactly what you need to study next time.

Stack of white cards and a black keyboard with a red button on a desk. Blue sticky notes with handwriting are scattered around.

2. Flashcards (Done Right)

Don’t just read the front and back. That's not going to work in high school. Use the Leitner System. Create three boxes:

Box 1: Every day.
Box 2: Every Tuesday/Thursday.
Box 3: Once a week. As you get cards right, move them "up" a box. If you miss one, it goes back to Box 1. This uses Spaced Repetition to
ensure you aren't wasting time on things you already know.

3. Teach the "Rubber Duck"

If you can’t explain a concept to a rubber duck (or a very patient younger sibling or parent), you don’t understand it. Explaining a concept out loud forces your brain to organize the data logically.