Beginners usually lose through three habits: playing too many hands, calling too often, and misjudging how strong a hand is. Each drill works on one piece of that.
Hand ranks and Who wins? Read your best five cards, and know who takes the pot when two hands are close.
Starting hands. Which two cards are worth playing from each seat. Folding the rest is the simplest big improvement a beginner can make.
Count your outs, The odds and Call or fold? Count the cards that complete your hand, turn that into a percentage, and compare it with the price of the call.
Each drill has three modes: Study shows you the answers, Practice quizzes you and brings your misses back, and Test is a timed run. Score 90% on a test and the drill gets a tick. Your progress stays in this browser.