Study Languages
Study Spanish: Preterite vs Imperfect Review
Comprehensive review of the preterite and imperfect past tenses. Includes regular, irregular, and stem-changing conjugations. Rules for usage and time expressions in Spanish are listed. A quiz at the end of the lesson tests the student's...
Study Languages
Study Spanish: Regular Verbs Part Iii
The third in a series of three lessons,that focus on regular verbs in the present tense. Fantastic summary of regular present tense conjugations and the use of subject pronouns. The explanation is thorough and easy to understand. The...
Study Languages
Study Spanish: Subjunctive: Regular Stem Changing
Comprehensive lesson on how to conjugate verbs in the present subjunctive. Regular and stem-changing verbs are presented in this explanation. A quiz at the end of the lesson tests the student's mastery of verb conjugations in the present...
PBS
Pbs Learning Media: Squares
The CyberSquad builds a raft out of squares in order to cross a river in this Cyberchase video [2:05] segment.
PBS
Pbs Learning Media: Wallpaper Tessellations
In this video segment from Cyberchase, Harry uses tessellations to wallpaper his apartment.
Languages Online
Languages Online: Consejos Para El Conductor
Choose "usted" command forms from a word bank to complete sentences that offer advice to drivers. Practice the imperative and learn driving vocabulary at the same time. Answers may be checked at the end of the exercise. Tutorials in...
Languages Online
Languages Online: La Conduccion De Caravanas
Conjugate each verb in the "usted" command form in this article to offer advice on driving in caravans. Answers may be checked at the end of the exercise. Tutorials in other langauges available from the homepage.
Other
Generalization
Learn how to construct convex polygons and the mathematical foundations of symmetry on this site.
Colby College
Spanish Language & Culture: The Future Tense
Colby College provides a great explanation of how to conjugate verbs in the future tense, with English translations of the examples. Twenty sentences provide fantastic practice in changing verbs from preterite tense to future tense...
Colby College
Spanish Language & Culture: El Preterito Formas (Part 2)
These exercises review irregular verbs, stem-changers, and spelling changes in the preterite tense. Conjugate verbs to match the subject. Answers may be checked and corrected.
Colby College
Spanish Language & Culture: Si Clauses With the Imperfect
This site from the Colby College provides a great explanation of "if" clauses and the imperfect tense. The exercise provides great practice with the imperfect past. Answers may be checked and corrected.
Study Languages
Study Spanish: Imperfect Part I
Excellent introductory lesson to the regular conjugations of the imperfect tense and the main rules that govern its usage. Examples in Spanish and English illustrate specific rules. A quiz at the end of the lesson tests the student's...
Study Languages
Study Spanish: Preterite Part 1
Excellent introductory lesson to the regular conjugations of the preterite tense and the main rules that govern its usage. Examples in Spanish and English illustrate specific rules. A quiz at the end of the lesson tests the student's...
Study Languages
Study Spanish: Preterite vs Imperfect Part I
This site is an introductory lesson to the preterite and imperfect past tenses. The regular conjugations of each are presented, with brief general rules for their use. This is a great introduction without getting bogged down in all the...
Study Languages
Study Spanish: Regular Verbs Part I
This introduction to conjugating verbs is the first in a series of three lessons,that focus on regular verbs in the present tense. This lesson teaches conjugations that correspond to the pronouns "yo", "nosotros", "usted", and "ustedes"....
Study Languages
Study Spanish: Regular Verbs Part Ii
The second in a series of three lessons,that focus on regular verbs in the present tense. This lesson teaches conjugations that correspond to the pronouns "tu", "el", "ella","ellos", "ellas", and "vosotros". The explanation is thorough...
Study Languages
Study Spanish: Preterite Tense Regular Verbs
Excellent examples of the preterite tense for regular verbs. You can also generate a quiz where you can select 10 to 25 sample questions to help test your knowledge of regular verb conjugations in the preterite tense.
Colby College
Spanish Language & Culture: The Preterite Tense
These exercises from Colby College provide a very extensive review of irregular verbs, stem-changers, and spelling changes in the preterite tense for more than 50 verbs. Practice conjugating these verbs in verb charts. Answers may be...
Other
Polyhedra: The Five Platonic Solids
A brief site that includes some activities to understand the figures.
Colby College
Spanish Language & Culture: Antes Del Viaje (Peterite Tense)
This review of regular and irregular Spanish verbs features charts for the preterite tense, including stem-changers and spelling changes.
Colby College
Spanish Language & Culture: El Preterito Formas (Part 1)
These exercises provide a very extensive review of irregular verbs, stem-changers, and spelling changes in the preterite tense. Conjugate verbs to match the subject. Answers may be checked and corrected.
Purple Math
Purplemath: Roman Numerals
Explains the basic rules for writing numbers in Roman-numeral format.
Colby College
Spanish Language & Culture: Present Subjunctive Forms (Part 3)
Completion of these twenty-four clauses provides an extensive review of regular and irregular verbs, stem-changers, and spelling changes in the present subjunctive tense. Verb infinitives are provided that need to be conjugated in the...