Build lasting understanding and ensure this revision strategy isn’t just a flash in the pan

Flashcards are a common revision strategy and an effective way to support retrieval practice, particularly when you combine them with the Leitner system. This system spaces repetition based on students’ learning needs. Many online learning platforms used by post-16 students already include flashcards to support revision. With flashcards already so well established, why revisit them?

Flashcards are a common revision strategy and an effective way to support retrieval practice, particularly when you combine them with the Leitner system (bit.ly/4a6OvkA). This system spaces repetition based on students’ learning needs. Many online learning platforms used by post-16 students already include flashcards to support revision. With flashcards already so well established, why revisit them?

Two flash cards for chemistry revision. The front of one says Define first ionisation energy and on its back includes the answer and an example using gaseous sodium. The other card is What is the trend in melting point going down group 2?

Source: Provided by the author

Fleshing out their flashcards with explanations and examples helps learners deepen their understanding of core concepts

Because they can do so much more.

Students typically make flashcards as a consolidation exercise after covering new content in class. A traditional flashcard usually has an exam question on one side and a model answer on the other. In recent years, I have encouraged my students to make their flashcards as useful as possible by adding explanations and examples to the answer side. This prompts deeper thinking, both while making and using them, which supports longer-term and more transferable memory.

Teach learners to create detailed flashcards

Go for detail

Early in post-16 study, I dedicate a lesson to teaching students how to write more detailed flashcards. Once we have covered sufficient content and they understand it, I provide them with physical cards and a list of questions they need to be able to answer. They create a set of question and answer flashcards at home, leaving space to add more information to the answer sides.

Table 1: A traditional flashcard answer versus an updated answer: including an explanation or example prompts students to engage more deeply with the content while they’re making and using the card
 Question Traditional answerUpdated answer with explanation 
Define first ionisation energy The energy required to remove one mole of electrons from one mole of gaseous atoms to form one mole of gaseous 1+ ions.

The energy required to remove one mole of electrons from one mole of gaseous atoms to form one mole of gaseous 1+ ions.

Example: 

Energy required when one mole of gaseous Na atoms lose an electron from the 3s orbital to become Na+ ions:

Na(g) → Na+(g) + e−

In a subsequent lesson, we improve these flashcards together. To make expectations clear, I use some of the flashcards learners have made and we work together as a class to add explanations and/or examples. Typically, this involves placing a flashcard under the visualiser and asking students to write an example to go with it on their mini whiteboards. We then share and discuss students’ suggestions before agreeing on a strong example. Learners then add this example, in their own words, to their own flashcard. We repeat this until students feel confident enough to continue independently.

Following this initial lesson, I regularly set homework for students to make flashcards on a regular basis and designate a lesson for them to bring them in and do spot-checks to ensure that they are making effective flashcards.

Ensure learners use their flashcards

Make learners use them

Since introducing these more detailed flashcards, I have seen my learners engage with them more. I’ve also seen their test answers improve, particularly in recall and simple explanation questions, such as questions on periodic trends. Many students now use their flashcards even when I don’t explicitly ask them to, and some make their own flashcards for other subjects because find them helpful.

One student commented: ‘Making and using flashcards helps me to prepare for the next lesson by consolidating what we’ve done, as well as helping with revision’.

Want more revision techniques?

Flashcards are a great way for learners to summarise their knowledge and self-test. Discover more research-informed revision strategies and when to encourage students to use them for the best assessment outcomes.

So long as you hold students accountable for making the flashcards, the biggest pitfall is that they make them but never use them. To counter this, I periodically dedicate short periods of lesson time to practising revision techniques with flashcards, including using the Leitner system. After making the initial set of cards, allow students to choose between making and using physical or electronic cards. Some students prefer to organise their flashcards online: as long as they are engaging with them and getting the most out of them, this is fine.

Adding explanations and examples to traditional flashcards gets students thinking about concepts they might have previously learned by rote and helps deepen their understanding of core concepts. I have used this method with my post-16 chemists and have seen them apply it successfully to other subject areas. It could also be beneficial for some areas of 14–16 science as well, particularly in topics, such as structure and bonding, where a secure understanding of core concepts underpins success.

Helen Skelton