NoDictionaries.com: You can find the word list for this fable online, and use it interactively (here are some tips on how to make best use of the tool).
READ OUT LOUD. Choose which marked text you prefer to practice with - macrons or accent marks - and read the text out loud until you feel comfortable and confident. Then, try reading the unmarked text at the bottom. It should be easy for you after practicing with the marked texts. :-)
MACRONS. Here is the text with macrons:
Agricola senex cum mortem sibi adpropinquāre sentīret, fīliōs convocāvit, quōs, ut fierī solet, interdum discordāre sciēbat, et fascem virgulārum adferrī iubet. Quibus adlātīs fīliōs hortābātur ut hunc fascem frangerent. Quod cum facere nōn possent, distribuit singulīs singulās virgās, eīsque celeriter frāctīs, docuit illōs quam fīrma rēs esset concordia quamque imbēcillis discordia.
ACCENT MARKS. Here is the text with ecclesiastical accents, plus some color-coding for the words of three or more syllables (blue: penultimate stress; red: antepenultimate stress):
Agrícola senex cum mortem sibi adpropinquáre sentíret, fílios convocávit, quos, ut fíeri solet, intérdum discordáre sciébat, et fascem virgulárum adférri iubet. Quibus adlátis fílios hortabátur ut hunc fascem frángerent. Quod cum fácere non possent, distríbuit síngulis síngulas virgas, eísque celériter fractis, dócuit illos quam firma res esset concórdia quamque imbecíllis discórdia.
UNMARKED TEXT. Here is the unmarked text - after practicing with the marked text that you prefer, you should not have any trouble with the unmarked text:
Agricola senex cum mortem sibi adpropinquare sentiret, filios convocavit, quos, ut fieri solet, interdum discordare sciebat, et fascem virgularum adferri iubet. Quibus adlatis filios hortabatur ut hunc fascem frangerent. Quod cum facere non possent, distribuit singulis singulas virgas, eisque celeriter fractis, docuit illos quam firma res esset concordia quamque imbecillis discordia.
IMAGE. Here is an illustration for the story (image source) by Walter Crane:
