Dictionary Detectives

Overview

Students use print and digital dictionaries and glossaries to look up unfamiliar words, check spelling, and clarify meaning — building both vocabulary skills and the IB PYP habit of asking questions and taking action as independent learners.

Learning intentions

• Students will be able to use a print or digital dictionary to find the meaning of an unfamiliar word.
• Students will be able to use a glossary to clarify the precise meaning of a word in context.
• Students will be able to use dictionary resources to check and correct spelling.

Success criteria

• I can locate a word in a print or digital dictionary and read its definition.
• I can use a glossary to figure out what a word means in a sentence.
• I can spell-check a word using a dictionary and correct it if needed.

Curriculum links

• IB PYP Transdisciplinary Theme: How We Express Ourselves — students explore how language communicates meaning
• IB PYP Language Strand: Oral and written language — understanding vocabulary in context
• IB Approaches to Learning: Research skills — locating and recording information from reference tools
• Georgia Standard: Using glossaries or beginning dictionaries, print and digital, to determine or clarify the meaning of words and check spelling

Lesson structure (20 minutes)

0–2 min | Hook and activate prior knowledge Ask: "Has anyone ever seen a word they didn't know while reading? What did you do?" Take 2–3 quick responses. Tell students that today they become Dictionary Detectives — using dictionaries and glossaries like real researchers do.

2–6 min | Mini-lesson: How to use a dictionary Hold up (or display on screen) a simple print dictionary page and a digital dictionary side by side. Briefly model how to find a word alphabetically in print and how to type a word into a digital dictionary tool. Point out the definition, part of speech, and example sentence. Keep it to one clear example word, such as "curious."

6–10 min | Guided practice — whole class Display 3 target words on the board: "huddle," "glisten," and "soggy." Ask students to predict meanings first (think-pair-share, 30 seconds). Then, as a class, look up one word together — model reading the entry aloud, identifying the meaning, and using it in a sentence. Connect this to the IB idea that good learners ask questions and seek evidence before drawing conclusions.

10–15 min | Independent practice — Dictionary Detective cards Each student receives a Detective Card with 2 unknown words and 1 misspelled word. Students use either a print or digital dictionary (assign based on available materials) to write the definition of each word and correct the spelling mistake. Circulate and prompt with questions like "What letter does it start with?" or "Does the definition match how the word is used?"

15–18 min | Share and reflect Call on 3–4 students to share one word they looked up and its meaning. Ask: "Did the real meaning surprise you? How does knowing this word help you as a reader?" Connect back to IB inquiry — students are building tools to understand the world through language.

18–20 min | Wrap-up and exit ticket Students write one sentence on a sticky note using a word they looked up today, spelling it correctly. Collect as an exit ticket. Reinforce: "Dictionary detectives don't guess — they investigate!"

Resources

• Class set of beginning print dictionaries (one per student or pair)
• Access to a digital dictionary on tablets, Chromebooks, or a class computer with projected display
• Detective Cards (teacher-prepared: each card lists 2 vocabulary words and 1 intentionally misspelled word)
• Dry-erase board or projector to display words during guided practice
• Sticky notes for exit tickets
• Pencils

Assessment

• Exit ticket sticky notes show whether students can use a looked-up word accurately in a sentence with correct spelling.
• Detective Cards are collected to check that students correctly identified definitions and fixed the misspelled word.
• Teacher observation during independent practice notes which students need prompting to navigate the dictionary alphabetically.

Differentiation

• Support: Pair struggling students with a partner during independent practice; provide Detective Cards with words that begin with letters A–M to reduce alphabetical navigation difficulty; offer a simplified digital dictionary with audio pronunciation.

• Extension: Students write a short paragraph (3 sentences) using all three words from the guided practice section, checking each spelling in the dictionary before submitting.

• EAL/SEN: Pre-teach how to hold and flip through a print dictionary before the lesson; provide a bilingual digital dictionary if available; use Detective Cards with picture clues alongside the target words to build meaning through visual context.

• Mixed readiness: Allow students to choose between print and digital dictionaries — students who are more comfortable with technology may find the digital tool faster and less frustrating, while hands-on learners may benefit from the physical page-turning of a print dictionary.