Compare/Contrast Structure — Two Things Side by Side

Two-thing detective: teacher writes two topics on the board ('honeybees' and 'bumblebees') and asks children to brainstorm 3 SIMILARITIES and 3 DIFFERENCES.

• Record similarities and differences in two columns
• Name 'this is COMPARE/CONTRAST'
• Bridge to text-structure

Today we meet the SECOND text-structure: COMPARE/CONTRAST. A compare/contrast paragraph puts two things SIDE BY SIDE to show similarities (compare) and differences (contrast). COMPARE = how they are ALIKE. CONTRAST = how they are DIFFERENT. This structure fits topics where two things are related but not the same: two animals, two places, two artists, two methods. The signal words are powerful: SIMILAR TO, LIKE, ALSO, BOTH (for compare); IN CONTRAST, HOWEVER, ON THE OTHER HAND, UNLIKE, WHILE (for contrast). Watch the model. (Teacher writes) 'Honeybees and bumblebees are similar in some ways, but they have important differences. Both bees collect nectar and pollinate flowers, and both live in colonies. HOWEVER, honeybees live in colonies of tens of thousands, while bumblebee colonies usually have only 50 to 400 bees. IN CONTRAST to honeybees, bumblebees do not produce extra honey for humans. Both kinds of bee are important to our gardens, but they do their work in different ways.' Notice the structure: COMPARE-then-CONTRAST, with two contrast-signal words (HOWEVER, IN CONTRAST) and one compare-signal (BOTH).

• COMPARE/CONTRAST = side-by-side. Use BOTH and SIMILAR for compare; HOWEVER and IN CONTRAST for contrast.

  model TOPIC (purple): 'Moon jellies and lion's mane jellies are both jellyfish, but they are very different in size.' DETAIL (blue): 'Moon jellies are about the size of a dinner plate, while lion's mane jellies can grow up to 8 feet across.' EXAMPLE (orange): 'For example, the largest lion's mane jelly ever recorded had tentacles 120 feet long — longer than a blue whale.' TRANSITION (green): 'However, both kinds of jellyfish move through the water in the same way.'

  prompt Teacher writes a compare/contrast TDET paragraph from scratch on a new topic (two methods of weaving, or two kinds of jellyfish).

• What's the difference between COMPARE and CONTRAST?
• Name a contrast-signal word and a compare-signal word.

M-3-S-WR-08-A Chart

11x17 anchor with COMPARE/CONTRAST at top in large color-block letters. Center: a 2-circle Venn diagram (left = TOPIC A, right = TOPIC B, overlap = BOTH). Below: signal-word lists in two columns — COMPARE (blue: similar to, like, also, both) and CONTRAST (red: however, in contrast, on the other hand, unlike, while). Bottom: worked example paragraph (honeybees vs. bumblebees) with signal words highlighted. Print-ready, dyslexic-friendly font.

• Pick a body-paragraph focus that calls for compare/contrast (two things side by side). Draft a TDET paragraph using at least one compare-signal AND one contrast-signal.

  scaffold Compare/contrast signal-word card at desk + MG-3 + MG-4 anchors
• Annotate your draft: underline compare-signals in blue, contrast-signals in red.

  scaffold Blue + red pencils + signal-word card

M-3-S-WR-08-B Diagram

Reference image of a blank 2-circle Venn diagram (one circle blue, one red, overlap purple) sized at 8.5x11 with 5 lines in each section for child to write. Labels TOPIC A and TOPIC B in the outer regions and BOTH in the overlap. Print-ready.

• Read your compare/contrast paragraph aloud to a partner. Partner names: 1 similarity, 1 difference, and 2 signal words.
• Star your strongest contrast.

• Hold up your compare/contrast paragraph.
• Predict: tomorrow we organize all body paragraphs with the multi-paragraph outline (MPO).

• At home tonight, pick two ordinary objects (two fruits, two utensils, two rooms). Write 2 similarities and 2 differences on a sticky note. Bring it tomorrow.